According to the programmed theory of primary aging, ___________.
A) after doubling about 50 times, cells begin to die
B) death is genetically preprogrammed
C) damage to cells and organs over the years causes death
D) both a and b

Question

Quizplus · Accepted Answer

The programmed theory of primary aging suggests that aging is a result of a biological timetable, which includes the idea that cells have a limited number of divisions (about 50 times) and that death is genetically preprogrammed.

According to the Programmed Theory of Primary Aging, ___________