Question

In development of Frog gastrulation involves

• A. Epibody
• B. Emboly
• C. Invagination
• D. All of the above

Answer 1

Answer: (D)

All of the above

During gastrulation the morphogenetic movement takes place. Epiboly is the movement of the cell in an anterior-posterior axis and along the periphery. Emboly is the inward movement of the cell to form a layer.

During invagination, the cell forms a cavity which is lined by the invaginated cells. In gastrulation of frog, the cells of the blastoderm are pushed inwards in the blastocoel to form a new cavity archenteron.

So, the correct option is 'All of the above'