The tips of chromosomes that wear down as we age are called
A) epigenetic marks.
B) antibodies.
C) genomes.
D) telomeres.

Question

Quizplus · Accepted Answer

Telomeres are the protective caps at the end of chromosomes that get shorter as we age and eventually lead to cell death. Epigenetic marks refer to changes in gene expression without changes in the underlying DNA sequence. Antibodies are proteins produced by the immune system to help fight off infections. Genomes refer to the complete set of genetic material in an organism.

The Tips of Chromosomes That Wear Down as We Age