Multiple choice

The blastocyst is a structure formed in the early development of all the mammals. It possesses an inner cell mass which subsequently gives rise to _________.

  1. amnion

  2. chorion

  3. embryo

  4. allantois

  5. trophoblast

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An embryo is a multicellular diploid structure in its earliest stage of development, from the time of the first cell division until birth. The internal cluster of cells forming the blastocyst later forms an embryo.