Q. Select the correct explanation for the labels A, B, C and D.Biology Question Image

 2533  206 AIIMSAIIMS 2015Human Reproduction Report Error

Solution:

In the given figure A represents fusion of male and female gametes, B is 4 celled blastomere. C shows the morula stage, i.e., an embryo with 8 blastomeres and D is the blastocyst which gets implanted in the uterus.