The image below shows the two-cell stage of cleavage of a zygote. Identify the name of the structures indicated by the arrows.
A) glastulae
B) blastocysts
C) trophoblasts
D) morulae
E) blastomeres

Question

The image below shows the two-cell stage of cleavage of a zygote. Identify the name of the structures indicated by the arrows. 
A) glastulae 
B) blastocysts 
C) trophoblasts 
D) morulae 
E) blastomeres

Quizplus · Accepted Answer

The structures indicated by the arrows are the two blastomeres resulting from the first cell division of the zygote, therefore they are called blastomeres.

The Image Below Shows the Two-Cell Stage of Cleavage of a Zygote