Twin Studies Have Found That While Certain Aspects of Intelligence

question 251

Multiple Choice

Twin studies have found that while certain aspects of intelligence appear to have a genetic basis, __________ IQ has been explained better by environmental factors.

• A) performance
• B) verbal
• C) interpersonal
• D) total

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Definitions:

Monohybrid Cross

Cross between two individuals identically heterozygous for one gene; for example Aa × Aa.

Purebred

An animal bred from parents of the same breed or variety, maintaining specific desired traits over many generations.

Genotype

The particular set of alleles that is carried by an individual’s chromosomes.

Black Coat Color

A genetic trait determined by the specific alleles in an organism that result in a black pigmentation of the fur or skin.