Which of the following is a similarity between cellular clock, free-radical, and mitochondrial theories?
A) They attribute the process of aging to hormonal changes.
B) They attempt to explain aging at the cellular level.
C) They discount the role of genetics in aging.
D) They emphasize the effects of ecological factors on aging.

Question

Quizplus · Accepted Answer

All three theories attempt to explain the process of aging at the cellular level. The cellular clock theory suggests that cells can only divide a certain number of times, the free-radical theory proposes that aging is caused by the accumulation of DNA damage and other cellular injuries caused by free radicals, and the mitochondrial theory suggests that aging results from the accumulation of damage to the energy-generating mitochondria within cells. None of these theories focus on hormonal changes, genetics or ecological factors as the primary cause of aging.

Which of the Following Is a Similarity Between Cellular Clock