Which of the Following Defines or Explains Adaptation

question 23

Multiple Choice

Which of the following defines or explains adaptation?

• A) The magnitude of a receptor response increases over time to a continuous stimulus.
• B) The magnitude of a receptor response decreases over time to a continuous stimulus.
• C) The stimulus is sent to the thalamus and redirected to the brainstem.
• D) None of the above defines or explains adaptation.

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Definitions:

Quantitative Trait Locus

A Quantitative Trait Locus (QTL) is a region of DNA that is associated with a particular phenotypic trait, which varies in degree and can be attributed to polygenic effects.

Genetically Divergent Populations

Populations that have accumulated genetic differences due to barriers to gene flow, resulting in genetic distinction from each other.

Linkage Disequilibrium

The non-random association of alleles at two or more loci, not necessarily on the same chromosome, which can influence genetic traits and disease risks.

Physical Linkage

The adjacency of two or more loci on the same chromosome.