Which of the Following Is True of Identical Twin Studies

question 101

Multiple Choice

Which of the following is true of identical twin studies?

• A)It is clear that fraternal twins reared together are more likely than identical twins to exhibit similar behaviors.
• B)The study of monozygotic twins is important because it helps us,to some extent,identify genetic versus environmental causes of behavior.
• C)Even biological characteristics such as hair and eye color are somewhat influenced by environment.
• D)The study of dizygotic twins is important because it helps us rule out environmental causes of behavior.

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Definitions:

Phenotype

A phenotype is the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.

Environmental Differences

Variations in the surroundings or conditions that can affect the development, behavior, or survival of organisms.

Genetic Origin

The ancestral lineage or source of an organism's genes, determining inherited characteristics.

Plant Height

The measurement of a plant from its base at the soil level to its highest point.