Question

Describe the cleavage patterns on the basis of quantity & distribution of yolk.

Answer 1

The different cells derived fromcleavage are called blastomeres and form a compact mass called the morula. Cleavage ends with the formation of the blastula. Depending mostly on the amount of yolk in the egg, the cleavage can be holoblastic (total or entire cleavage) or meroblastic (partial cleavage).