Question Detail
Question
During gastrulation the interaction between cell surface molecules enables the migrating cells to adhere to one another and move as a single mass. (True/False)
Correct Answer
Option A is the correct answer.
Detailed Explanation
This is true. Gastrulation involves dramatic cell movements (invagination, involution, etc.) to form the three germ layers. Cell adhesion molecules (CAMs) on cell surfaces allow cells to recognize, adhere to each other, and move collectively in a coordinated manner.
Hint
Cells need to stick together and move in sheets, not just float around.