Biology · Human Reproduction
Arrange the following events in the correct chronological order pertaining to fertilization and development in the human reproductive system. (A) The blastocyst becomes embedded in the endometrium. (B) Finger-like projections appear on the trophoblast called chorionic villi. (C) The blastomeres are arranged into trophoblast and the inner cell mass. (D) The zygote divides mitotically and transforms into an embryo with 8-16 blastomeres, called a morula. Choose the correct answer from the options given below.
- 1(C), (B), (D), (A)
- 2(B), (A), (D), (C)
- 3(A), (C), (B), (D)
- 4(D), (C), (A), (B)✓
Correct answer
(D), (C), (A), (B)
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