Question

What would happen if an embryo failed to secrete HCG?

(a) The maternal elements of the placenta would fail to develop.
(b) The fetal elements of the placenta would fail to develop.
(c) Neural tube formation would not occur, and the embryo would not have a brain.
(d) The embryo would be aborted.

Answer 1

B is the correct answer. The fetal elements of the placenta would fail to develop. Neural tube formation would not occur, and the embryo would not have a brain.