Genetic Drift Results in a Change in Allele Frequencies Because

question 12

Multiple Choice

Genetic drift results in a change in allele frequencies because

• A) gene flow within the population allows alleles to flow between populations.
• B) the population size is so small that chance occurrences can alter allele frequencies.
• C) the population has not yet stabilized.
• D) the population is so large that natural selection has little noticeable effect.

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Definitions:

Heart's Measure

An informal expression referring to the evaluation or assessment of heart function or health, possibly including heart size, capacity, or performance.

Pericardial Cavity

A fluid-filled space between the pericardium (the membrane that surrounds the heart) and the heart itself.

Beating Heart

A term describing the continuous rhythmic contraction and relaxation of the heart muscle, which pumps blood through the circulatory system.

Friction

The resistance that one surface or object encounters when moving over another, a fundamental force that opposes the relative motion or tendency of such motion of two surfaces.