The part of a chromosome that shortens with each cell division,functioning as a "clock," is the
A) centromere.
B) centrosome.
C) centriole.
D) telomere.
E) teleost.

Question

Quizplus · Accepted Answer

The part of a chromosome that shortens with each cell division is the telomere. It functions as a "clock" because its shortening limits the number of times a cell can divide, ultimately leading to cellular senescence or programmed cell death.

The Part of a Chromosome That Shortens with Each Cell