NEET Zoology Pregnancy MCQ Question
Which of the following statements about pregnancy and embryonic development are correct?
The blastocyst embeds itself in the endometrium during implantation.
The inner cell mass of the blastocyst forms the trophoblast layer.
Finger-like projections appear on the uterine wall after implantation.
The human pregnancy lasts approximately 12 months.
Correct Answer
Detailed Explanation
Statement A is correct as the blastocyst does embed itself in the endometrium during implantation, leading to pregnancy. Statement B is incorrect because the trophoblast layer is formed from the outer layer of the blastocyst, not the inner cell mass. Statement C is correct; the projections develop post-implantation. Statement D is incorrect; human pregnancy typically lasts 9 months.
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