PLEASE HELP!! WILL GIVE BRAINLIEST TO THE FIRST CORRECT ANSWER.

Cell division is regulated to prevent unnecessary replication and errors that can occur in the process. When regulation fails, mutations and cancer can result. The G1 checkpoint ensures that conditions are right for division. Evaluate each of these factors. All BUT ONE of them are examined at the G1 checkpoint.


A) nutrient availability

B) DNA is free of mutations

C) chromatids are attached to centromeres

D) evaluation of growth signals