If There Is No Phenotypic Variation in a Trait, Then

question 39

Multiple Choice

If there is no phenotypic variation in a trait, then the heritability of that trait will be approximately

• A) 1.0.
• B) .50.
• C) .25.
• D) 0.

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Definitions:

Distal Stimuli

Objects or events in the external world that provide the basis for the perception of our immediate environment, as opposed to the sensory inputs that they generate.

Detectable Input

A level of stimulus that is sufficient to be noticed or detected by the sensory systems.

Wavelength

The distance between successive crests of a wave, usually used in the context of electromagnetic waves.

Amplitude

The magnitude or extent of change in a variable, often used in the context of waves to describe their height or intensity.