According to cellular clock theory, after about 70 or 80 replications, the cell can no longer reproduce and the ________ are dramatically reduced.
A) mitochondria
B) telomeres
C) chromosomes
D) sperm cells

Question

Quizplus · Accepted Answer

Cellular clock theory states that after about 70-80 replications, the telomeres, which are the protective caps at the end of chromosomes, become increasingly shorter until they can no longer function properly. This leads to a reduction in the ability of the cell to reproduce. Therefore, the correct answer is B) telomeres.

According to Cellular Clock Theory, After About 70 or 80