The probability that two people share the same allele from a common ancestor is referred to as ____

For young and old alike, reminiscence

A) is ruminative. B) occurs during times of life transition. C) reinforces negative stereotypes. D) occurs more often among people who are self-focused.

Which of the following categories is NOT one of the five categories mentioned in the text regarding factors affecting social interaction?

a) Perceptual processes b) Cognitive processes c) Environmental variables d) Biological factors