People,even from the same family,vary in intelligence.This variation suggests that intelligence is:
A) controlled by a single gene
B) a function of personality
C) genetically determined
D) polygenic

Question

Quizplus · Accepted Answer

The fact that people within the same family vary in intelligence suggests that intelligence is not controlled by a single gene, as option A proposes. It also suggests it is not simply a function of personality, as option B proposes. Rather, research has consistently shown that intelligence is polygenic, meaning it is influenced by multiple genes. Therefore, option D is the best choice.

People,even from the Same Family,vary in Intelligence