Gujarati
2.Human Reproduction
normal

Holoblastic cleavage may occur in eggs which are

A

Oligolecithal only

B

Mesolecithal only

C

Macrolecithal only

D

Oligolecithal and mesolecithal both

(AIIMS-1987)

Solution

(d)In oligolecithal eggs viz. Amphioxus, holoblastic cleavage takes place and in mesolecithal eggs viz. fishes and amphibians, unequal holoblastic cleavage (except $I$ and $II$) is found.

Standard 12
Biology

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