Multiple choice

The extra embryonic membranes of mammalian embryo are derived from

  1. inner cell mass

  2. trophoblast

  3. formative cells

  4. follicle cells
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The trophoblast layer of the blastocyst gives rise to extra-embryonic membranes including the chorion, while the inner cell mass forms the embryo proper. The inner cell mass is restricted to embryonic structures, formative cells is not standard terminology, and follicle cells are ovarian structures unrelated to embryonic membranes.

Keep practicing — related questions