Correct Answer: A
Explanation:
): The amount of yolk and how it is distributed determines the type of cleavage. On this basis cleavage is of two types:
(a) Holoblastic – where the segmentation line passes through the entire egg. It occurs in alecithal (without yolk), microlecithal (with very little amount of yolk) and mesolecithal (little amount of yolk) egg.