A Quantitative Trait Locus (QTL)

question 18

Multiple Choice

A quantitative trait locus (QTL)

• A) is a stretch of DNA correlated with variation in a phenotypic trait.
• B) is a gene locus that is solely responsible for a single phenotype.
• C) is a stretch of DNA that contains genes or is linked to genes that contribute to population differences in a phenotype.
• D) a and c
• E) b and c

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Definitions:

Sexual Response

The physiological and emotional experience associated with sexual arousal and orgasm.

Excitement

A state of heightened emotional arousal that can be positive or negative, often triggered by anticipation or activity.

Final Phase

The last stage or part of a process, often marking the completion of a project or the end of a period.

Sexual Response

The physiological and emotional reactions of an individual to sexual stimulation, which can include phases of arousal, plateau, orgasm, and resolution.