If one of the blastomeres is removed from a developing mouse embryo, the remaining cells will still develop into a normal mouse. This is an example of
A) regulative development.
B) determination.
C) mosaic development.
D) involution.
E) ingression.

Question

Quizplus · Accepted Answer

The fact that the remaining cells can still develop into a normal mouse indicates that regulative development is occurring. This means that each cell has the potential to develop into any cell type, and the fate of the cell is influenced by signals from neighboring cells. If determination were occurring, the removed blastomere would have been predetermined to develop into a specific cell type and the remaining cells would not be able to compensate for its loss. Mosaic development would result in a non-functional embryo if a blastomere were removed. Involution and ingression are not relevant to this scenario.

If One of the Blastomeres Is Removed from a Developing