A Quantitative Trait Locus Is

question 13

Multiple Choice

A quantitative trait locus is

• A) a section of DNA that regulates the expression of a gene.
• B) a genetic mutation responsible for a certain disease.
• C) a change in the phenotype produced by a single genotype.
• D) a stretch of DNA correlated with variation in a phenotypic trait.

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Definitions:

Knowledge Base

An individual’s mentally stored information. Adults generally have a larger base for most domains of knowledge than children do.

Cognitive Changes

Refers to alterations in mental processes such as perception, memory, and reasoning that occur over time due to aging, development, or neurological conditions.

Processing Speed

The rate at which an individual can perceive, understand, and respond to information or stimuli.

Rehearsal

A strategy for remembering that usually involves continuing to actively process to-be-remembered material, like repeating it to oneself.