Epiboly is the process of [CBSE PMT 1992]
A) Mass migration of cells from the animal hemisphere so that upper micromeres begin to migrate over the edge of the dorsal lip and roll inside and are tucked beneath the outer layer
B) Over growth when the micromeres divide rapidly and begin to spread downwards over the megameres except at the yolk plug
C) Rotation of gastrula within the vitelline membrane so that the animal pole becomes anterior
D) Formation of a small slit like invagination occuring on the gray crescent
Answers
Answered by
0
b is correct answer
Answered by
1
Epiboly is the process of over growth when the micromeres divide rapidly and begin to spread downwards over the megameres except at the yolk plug.
Explanation:
- Migration and spreading of micromeres over the embryo are known as epiboly.
- Epiboly is the cell movement in that a cap that about "3000 cells" which forming the "epithelial mono-layer" on top of "animal pole" on the egg embryo that extends vegetally till it has engulfs the whole thing.
- Epibolic movement is a way in that the layer of epithelial cells spreads. It can be achieved in several ways.
To know more:
Difference between epiboly and emboly
https://brainly.in/question/3439325
Similar questions