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Epiboly is the process of...

Epiboly is the process of

A

Rotation of gastrula within vitelline membrane so that animal pole becomes anterior

B

Overgrowth of micromeres which divide rapidly and spread downward over megameres except at yolk plug

C

Mass migration of cells from animal hemisphere so that upper micromeres migrate over edge of dorsal lip, roll inside and fucked beneath outer layer

D

Formation of small slit like invagination upon grey crescent

Text Solution

Verified by Experts

The correct Answer is:
B
Epiboly - descending of dividing cells to cover other cells. Invagination - tucking in blastula wall. Emboly - Upward movement of dividing cells underneath the cells.
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