If cells cannot replicate the ends of their DNA, what should happen with each round of cell division?
A)The chromosomes should stay exactly the same length.
B)The chromosomes should get longer.
C)The mitotic spindle should shrink.
D)The chromosomes should get shorter.
E)The chromosomes should denature.

Question

Quizplus · Accepted Answer

As cells divide, the DNA must be replicated to ensure that the daughter cells receive a complete copy of the genetic material. However, the replication machinery cannot copy the very ends of chromosomes, known as telomeres. Therefore, with each round of cell division, the telomeres will gradually get shorter. Over time, this can lead to cell senescence or death, as critical genetic information is lost.

If Cells Cannot Replicate the Ends of Their DNA, What