In bird embryos, the pathway for cell migration into the blastocoel is formed by the ____, while in frog embryos, the pathway for cell migration into the blastopore is formed by the ____.
A) archenteron; dorsal lip of the blastopore
B) epiblast; dorsal lip of the blastopore
C) primitive groove; ventral lip of the blastopore
D) primitive groove; dorsal lip of the blastopore
E) hypoblast; ventral lip of the blastopore

Question

Quizplus · Accepted Answer

In bird embryos, the primitive groove forms the pathway for cell migration into the blastocoel. In frog embryos, the dorsal lip of the blastopore is the pathway for cell migration into the blastopore.

In Bird Embryos, the Pathway for Cell Migration into the Blastocoel