Which of the following would not inhibit a cell preparing to undergo mitosis?
A)chromosomal abnormalities
B)Cdc-activating kinase activity
C)Chk1 inhibtion of Cdc25
D)p21 inhibition of G₁
E)environmental signals that no new cells are needed

Question

Quizplus · Accepted Answer

Cdc-activating kinase activity is necessary for cells to progress through mitosis, so its inhibition would prevent cells from entering mitosis. The other choices are all factors that could inhibit cells from undergoing mitosis, either by blocking the G₁/S or G₂/M checkpoints or by causing chromosomal abnormalities that would trigger the DNA damage response.

Which of the Following Would Not Inhibit a Cell Preparing