Identical twins are possible in humans because ________.
A) cytoplasmic determinants are distributed unevenly in unfertilized eggs
B) extraembryonic cells interact with the zygote nucleus
C) early blastomeres can form a complete embryo if isolated
D) the gray crescent divides the dorsal-ventral axis into new cells

Question

Quizplus · Accepted Answer

Identical twins result from the separation of early blastomeres, which are capable of developing into complete, individual embryos if isolated. This is due to the totipotency of these cells at early stages of development.

Identical Twins Are Possible in Humans Because ________