The transition from zygote to embryo involves
A) implantation.
B) fertilization.
C) blastocyst differentiation.
D) both implantation and blastocyst differentiation.

Question

Quizplus · Accepted Answer

The transition from zygote to embryo involves both implantation and blastocyst differentiation. Implantation is the process by which the blastocyst attaches to the uterine wall, and blastocyst differentiation is the process by which the blastocyst differentiates into the three germ layers, which give rise to all the tissues and organs of the body. Fertilization is the initial step in this process, but it does not encompass the entire transition from zygote to embryo.

The Transition from Zygote to Embryo Involves