Which of the following statements is true about heritability?
A) Heritability allows a person to determine how much of his or her intelligence is determined by genetics.
B) A trait with high heritability generally cannot be modified by experience.
C) If a trait is determined to be highly heritable in one environment, it will be so in all environments.
D) Heritability cannot be directly measured; it must be inferred based on studies of people with a known degree of genetic similarity.

Question

Quizplus · Accepted Answer

Heritability cannot be directly measured because it is impossible to separate genetic influences from environmental influences. Instead, heritability estimates are based on studies of people with a known degree of genetic similarity such as twins or family members. Option A is incorrect because heritability does not allow a person to determine how much of his or her intelligence is determined by genetics alone, as environmental factors also play a role. Option B is incorrect because high heritability does not mean that a trait cannot be modified by experience or environmental factors. Option C is incorrect because heritability estimates can vary across different environments.

Which of the Following Statements Is True About Heritability