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240. В АНАФАЗЕ I МЕЙОЗА К ПОЛЮСАМ КЛЕТКИ РАСХОДЯТСЯ

1. хроматиды

2. хромосомы – диады

3. биваленты тетрады

 

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241. ПЕРИОД ОВОГЕНЕЗА 1. роста 2. размножения 3. созревания НАЧИНАЕТСЯ  а) в период полового созревания  б) на 7 месяце эмбриогенеза  в) на 3 месяце эмбриогенеза  г) на 2 месяце эмбриогенеза  д) на 3 году жизни

 

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242. ПРИ ОПЛОДОТВОРЕНИИ У МЛЕКОПИТАЮЩИХ И ЧЕЛОВЕКА

СПЕРМАТОЗОИД ПРОНИКАЕТ В

1. овогоний

2. овотиду

3. овоцит I порядка

4. овоцит II порядка

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 243.ЯЙЦЕКЛЕТКА 1. полилецитальная 2. алецитальная 3. олиголецитальная   ХАРАКТЕРНА ДЛЯ  а) моллюсков, ланцетников, насекомых  б) плацентарных млекопитающих, человека  в) рыб, рептилий, птиц, яйцекладущих млекопитающих

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244. ПЕРИОДЫ    СПЕРМАТОГЕНЕЗА 1. формирования 2. роста 3. созревания 4. размножения ЗАВЕРШАЮТСЯ ОБРАЗОВАНИЕМ КЛЕТОК  а) сперматид  б) сперматогониев  в) сперматоцитов II порядка  г) сперматозоидов  д) сперматоцитов I порядка  

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245. НАБОР ХРОМОСОМ (n) И КОЛИЧЕСТВО ДНК (c) В ГАМЕТОЦИТАХ, ВСТУПАЮЩИХ В МЕЙОЗ

1. 2n4c

2. 2n2c

3. 1n1c

4. 1n2c

5. 1n3c

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246. ПЕРВИЧНЫЕ ПОЛОВЫЕ КЛЕТКИ – ГОНОЦИТЫ У ЧЕЛОВЕКА ОБРАЗУЮТСЯ ИЗ КЛЕТОК

1. задней стенки кишки

2. зачатков гонад

3. амниона

4. энтодермы желточного мешка

5. кровеносных сосудов

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247. ОСОБЕННОСТИ МУЖСКИХ ГАМЕТ МЛЕКОПИТАЮЩИХ И ЧЕЛОВЕКА

1. митохондрии вокруг осевых нитей в среднем отделе

2. крупные размеры

3. подвижность

4. высокое значение ядерно-цитогенетического отношения

5. желток, иРНК, тРНК, органоиды в цитоплазме

6. кортикальный слой цитоплазмы

7. акросома

 

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248. КЛЕТКА ПЕРИОДА          ОВОГЕНЕЗА овогоний (после митоза) овоцит I порядка овоцит II  порядка овотида СОДЕРЖИТ НАБОР ХРОМОСОМ ( n) И КОЛИЧЕСТВА ДНК (с)  а) 1n1c  б) 1n2c  в) 2n2c                г) 2n4c

 

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  249. СТАДИЙ ПРОФАЗЫ I  В МЕЙОЗЕ

1пахитена

2лептотена

3диакинез

4зиготена

5диплотена

24153

 

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250. ПРЕИМУЩЕСТВЕННЫЙ СПОСОБ ГАСТРУЛЯЦИИ ДЛЯ млекопитающих и человека

1. иммиграция

2. эпиболия

3. деляминация

4. инвагинация

 

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251. стадии развития    зародыша 1. начало плацентации 2. 2 – 4 бластомера 3. имплантация     сроки эмбриогенеза а) 1 – 2 день б) 6 – 7 день в) третья неделя г) начало второго месяца д) конец второго месяца  

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252. В ОБРАЗОВАНИИ ОПОРНО-ДВИГАТЕЛЬНОЙ СИСТЕМЫ УЧАСТВУЮТ

1. миотом и склеротом

2. дерматом и нефрогонотом

3. нефрогонотом и спланхнотом

 

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253. зародышевую часть плаценты человека образуют

1. пуповина

2. хорион

3. амнион

4. аллантоис

5. желточный мешок

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254. закладка органов и тканей у человека начинается на сроке

   эмбриогенеза

1. начало второго месяца

2. 1 – 2 день

3. первая неделя

4. третья неделя

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255. ПРОИЗВОДНЫМИ МЕЗОДЕРМЫ ЯВЛЯЮТСЯ

1. эмаль зубов

2. спинной и головной мозг

3. кровь и лимфа

4. эпидермис

5. эпителии кишечника

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256. плацента человека

1. эндотелиохориальная

2. эпителиохориальная

3. десмохориальная

4. гемохориальная

 

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257. позвоночные 1. амниоты 2. анамнии   зародышевые провизорные органы а) желточный мешок б) амнион в) хорион г) аллантоис д) плацента е) отсутствуют  

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258. характер дробления у человека

1. полное неравномерное асинхронное

2. полное равномерное синхронное

3. неполное дискоидальное

4. неполное поверхностное

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259. тип бластулы у человека

1. перибластула

2. целобластула

3. дискобластула

4. амфибластула

5. бластоциста

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260. у человека начало гисто- и органогенеза совпадает с

1формированиемплаценты                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      2движением зародыша по маточным трубам

3началом имплантации

 

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261. ИЗ ЭКТОДЕРМЫ РАЗВИВАЕТСЯ

1. почки

2. нервная система

3. кровеносная система

4. скелетная мускулатура

5. печень

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262. В ОБРАЗОВАНИИ легких УЧАСТВУЮТ

1. желточный мешок

2. эктодерма

3. энтодерма

4. мезенхима

5. миотом

6. склеротом

 

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263. наиболее тесную связь между зародышем и организмом матери обеспечивает плацента

1. эндотелиохориальная

2. эпителиохориальная

3. десмохориальная

4. гемохориальная

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264. ПРОИЗВОДНЫМИ ЭНТОДЕРМЫ ЯВЛЯЮТСЯ

1. хрящи и связки

2. эпителии легких и воздухоносных путей

3. позвоночник

4. гладкая мускулатура пищеварительного тракта

5. эпидермис кожи

 

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265. участок сомита, участвующий в образовании костей, хрящей и связок

1. спланхнотом

2. миотом

3. склеротом

4. нефрогонотом

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266. части плаценты     Человека 1. материнская 2. зародышевая   образуются из  а) хориона  б) амниона  в) аллантоиса  г) желточного мешка  д) эпителия матки

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267. зародышевые листки 1. энтодерма 2. эктодерма 3. мезодерма производные  а) нервная трубка  б) печень, поджелудочная железа  в) сердце и кровеносные сосуды  г) эпителий ротовой полости  д) почки

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268. В ОБРАЗОВАНИИ ЗУБОВ УЧАСТВУЮТ ЗАРОДЫШЕВЫЕ ЛИСТКИ

1. мезодерма и энтодерма

2. эктодерма и мезодерма

3. эктодерма и энтодерма

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269. наиболее выраженные функции желточного мешка у человека

1. газообмен

2. питание зародыша

3. кроветворение

4. выделение продуктов диссимиляции

5. образование первичных половых клеток

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270. В ПЕРВЫЙ ДЕНЬ ЖИЗНИ РЕБЁНКА

1. закрываются роднички

2. отпадает пуповина

3. закрывается овальное окно

4. начинают функционировать легкие

5. зарастает боталлов проток

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271. критический период в постнатальном онтогенезе человека

совпадает с

1. юношеским периодом

2. первым детством

3. вторым детством

4. подростковым периодом

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272. В ПЕРИОД НОВОРОЖДЕННОСТИ У РЕБЕНКА

1. масса тела увеличивается (на 150-200 грамм)

2. длина тела увеличивается в 1,5 раза

3. появляются изгибы позвоночника

4. закрываются роднички

5. снижается масса тела

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273. биологический возраст человека определяется

1. стадией онтогенеза

2. способностью к репродукции

3. выраженностью процессов старения отдельных органов

4. функциональным состоянием систем интеграции

5. совокупной оценкой одновременно многих признаков, закономерно изменяющихся в процессе жизни

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274. СМЕНА МОЛОЧНЫХ ЗУБОВ НА ПОСТОЯННЫЕ НАЧИНАЕТСЯ В ПЕРИОД

1. второго детства

2. раннего детства

3. первого детства

4. подростковый

5. юношеский

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275. решающее влияние на продолжительность жизни человека оказывает

1. повышенная физическая нагрузка

2. среда обитания

3. генотип

4. питание

5. умеренная физическая нагрузка

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276. для человека характерны типы роста

1. аккреционный в отдельных тканях

2. мультипликативный в отдельных тканях

3. ограниченный

4. неограниченный

5. ауксентичный

                                                                    




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