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 tucked beneath outer layer
- D
Formation of small slit like invagination upon grey crescent
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