The Blastodisc of the Early Embryo Consists of the ________

Question

The blastodisc of the early embryo consists of the ________.
A) hypoblast and the epiblast
B) hypoblast and the trophoblast
C) epiblast and the trophoblast
D) hypoblast and the cytotrophoblast
E) cytotrophoblast and the epiblast

Accepted Answer

The blastodisc in the early embryo is made up of two distinct layers: the hypoblast and the epiblast. These layers are crucial for the subsequent development of the embryo, with the epiblast giving rise to the embryo proper and the hypoblast contributing to extraembryonic structures.