There Is No Way to Calculate the Heritability of a Trait

question 80

Essay

There is no way to calculate the heritability of a trait or behavior directly, so scientists must infer it. Explain, in detail, the two approaches that are used for that purpose.

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Definitions:

Stimulus Set Point

The threshold at which a stimulus is strong enough to elicit a response or reaction.

Just Noticeable Difference

The minimum difference in stimulation that a person can detect 50% of the time, a concept also known as the threshold of sensation.

Absolute Threshold

The minimum intensity of stimulation that must be achieved in order for a stimulus to be detected 50% of the time.

Taste Cells

Specialized sensory cells located on the taste buds of the tongue, responsible for perceiving different flavors such as sweet, salty, bitter, and sour.