Twin Studies Have Found That Some Psychological Traits, Such as Intelligence

question 170

Multiple Choice

Twin studies have found that some psychological traits, such as intelligence, have a notable genetic contribution. This can be concluded from what evidence?

• A) the similarity of identical twins raised apart is greater than the similarity of fraternal twins raised apart.
• B) the similarity of identical twins is essentially equal to that of fraternal twins.
• C) the similarity of fraternal twins raised together is greater than the similarity of identical twins raised apart.
• D) the similarity of identical twins is greater when they are reared apart than when they are reared together.

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Definitions:

Antiretroviral Medications

Drugs used in the treatment and management of HIV/AIDS that work by inhibiting the replication of the virus in the body.

Transmission

The process by which something is conveyed or transferred from one place, person, or thing to another, especially diseases or genetic traits.

Phenylketonuria

A genetic disorder that results in the inability to metabolize phenylalanine, leading to its accumulation in the body.

Metabolism

The set of life-sustaining chemical reactions in organisms, involving the conversion of food to energy and building materials.