Which Factor(s) Is (Are) Important to Consider When Projecting What

question 14

Multiple Choice

Which factor(s) is (are) important to consider when projecting what proportion of the United States population will be ages 65+ within the next 20 years?

• A)Numbers in the baby boom generation
• B)Birth rate
• C)Neither of the above
• D)Both of the above

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Definitions:

Genetic Drift

A mechanism of evolution that involves random changes in the frequency of alleles within a population over time, not necessarily driven by natural selection.

Allele Frequencies

The proportionate occurrence of alleles within a population's gene pool, indicating genetic diversity and evolution trends.

Allele Frequency

The proportion of all copies of a particular gene in a population that are of a given allele variety.

Stabilizing Selection

Natural selection acting to promote stability rather than change in a population's gene pool.