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In human famale the blastocyst...

In human famale the blastocyst

A

Forms placenta even before implantation

B

Gets implanted into uterus 3 days after ovulation

C

Gets nutrition from uterine endometrial secretion only after implantation

D

Gets implanted in endometrium by the trophoblast cells

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The correct Answer is:
D
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In human female the blastocyst:

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Implanatation of the blastocyst occurs

Assertion: During implantation, the trophoblast layer gets attached to the endometrium. Reason: The inner cell mass of the blastocyst gets differentiated as embryo.

Read the passage and answer the questions: Implantation is the embedding of the blastocyst into the endometrium of the uterus. Blastocyst is a ball of cells with a large, fluid-filled cavity called the blastocoel. The blastomeres in the blastocyst are arranged into an outer layer called trophoblast and inner cell mass. With the formation of blastocoel, morula is converted to blastula which is called blastocyst in mammals. State of embryo development, in which implantation occurs in human female is:

Read the passage and answer the questions: Implantation is the embedding of the blastocyst into the endometrium of the uterus. Blastocyst is a ball of cells with a large, fluid-filled cavity called the blastocoel. The blastomeres in the blastocyst are arranged into an outer layer called trophoblast and inner cell mass. With the formation of blastocoel, morula is converted to blastula which is called blastocyst in mammals. The ectoderm cells will form the........

The layer of the cell that forms the outer layer of the blastocyst is called ___________

AAKASH INSTITUTE-HUMAN REPRODUCTION-Assignment ( Section - C ) (Previous Type Question )
  1. The first movements of the foetus and appearance of hair on its h...

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  2. The part of Falloplan tube closest to the ovary is

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  3. In human famale the blastocyst

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  4. Which one of the following statements about morula in humans is c...

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  5. Signals from fully developed foetus and placenta ultimately lead...

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  6. Secretion from which one of the following are rich in fruclose , ...

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  7. Foetal ejection reflex in human female is induced by

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  8. A change in the amount of yolk and its distribution in the egg w...

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  9. Which one of the following is the correct matching of the event...

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  10. Seminal plasma in human is rich in

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  11. Given below is a diagrammatic sketch of a portion of set of the ...

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  12. Which one of the following is the most likely root cause why ...

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  13. In human at the end of the first meiotic division the male germ...

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  14. Which extraembryonic membrane in humans prevents desiccation of t...

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  15. In human females menstruation can be deferred by adminstration of

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  16. Which part of the ovary in mammals acts as an endocrine gland af...

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  17. Sertoli cells are regulated by the pituitary hormone known as

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  18. Grey crescent is the area

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  19. If mammalian ovum fails to get fertilized which one of the follo...

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  20. Which of the following best illustrates feedback in development ?

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