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.

Question

Quizplus · Accepted Answer

Telomeres are the protective caps at the end of chromosomes made up of repeated sequences of DNA. Telomeres shorten with each cell division, acting like a clock to limit the number of times a cell can divide.

The Part of a Chromosome That Shortens with Each Cell