Which of the following biological theories of aging emphasizes the role of telomeres?
A) free-radical
B) cellular clock
C) hormonal stress
D) All of these.

Question

Quizplus · Accepted Answer

The cellular clock theory of aging emphasizes the role of telomeres, which are the protective caps at the end of chromosomes that get shorter with each cell division. This eventually results in cellular senescence and aging. The free-radical theory and hormonal stress theory involve other mechanisms of aging.

Which of the Following Biological Theories of Aging Emphasizes the Role