Which theory best explains the finding that parents' lifespans predict those of their children, and identical twins share more similar lifespans than do fraternal twins?
A) Aging immune system
B) Cellular mutation
C) Programmed genetics
D) Free radicals

Question

Quizplus · Accepted Answer

Programmed genetics theory suggests that the lifespan of an individual is predetermined by their genetic makeup, which is passed down from their parents. This theory best explains why parents' lifespans predict those of their children, as well as why identical twins share more similar lifespans than do fraternal twins.

Which Theory Best Explains the Finding That Parents' Lifespans Predict