Which Two Relatively Recent Extensions to QTL Mapping Center on Molecular

question 8

Essay

Which two relatively recent extensions to QTL mapping center on molecular definitions of phenotypes with quantitative traits?

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Definitions:

Extinction

In psychology, the gradual weakening and eventual disappearance of a conditioned response.

Spontaneous Recovery

The reappearance of a previously extinguished response after a period of no exposure to the conditioned stimulus.

Stimulus Discrimination

The learned ability to differentiate between similar stimuli, responding only to the original conditioned stimulus and not to similar ones.

Stimulus Generalization

A psychological phenomenon in which a response to a specific stimulus becomes associated with other stimuli that are similar.