Question

A morula can be differentiated form blastula in

• A. Presence of cavity
• B. Presence of more yolk
• C. Presence of yolk
• D. Absence of cavity

Answer 1

Answer: (D)

Absence of cavity

Cleavage is the division of cells in an early embryo. After the zygote formation, cleavage begins and first formed is the morula. Morula contains 8-16 celled daughter cells known as blastomeres. It continues to divide further to form a blastocyst. The blastocyst has a cavity known as blastocoel along with an inner cell mass which is absent in the morula.

So the correct answer is D.