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  • In human female the blastocystOption: 1 Forms placenta even before implantationOption: 2 Ge

In human female the blastocyst

Option: 1

Forms placenta even before implantation


Option: 2

Gets implanted into uterus 3 days after ovulation


Option: 3

Gets nutrition from uterine endometrial secretion only after implantation


Option: 4

Gets implanted in endometrium by the trophoblast cells


Answers (1)

best_answer

In human females, the blastomeres in the blastocyst are arranged into an outer layer called trophoblast and the cells attached on the inner side to the trophoblast are called inner cell mass. The trophoblast gets attached to the endometrium. The uterine cells divide rapidly and cover the blastocyst due to which it gets embedded into the endometrium of the uterus. Thus, the correct answer is option d. 

 

Posted by

Divya Prakash Singh

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