When Both Drift and Selection Are Acting on a Locus

question 27

Multiple Choice

When both drift and selection are acting on a locus (alleles are not neutral and the population size is finite) , which of the following can occur?

• A) Natural selection can increase the effect of genetic drift.
• B) Neutral mutations are subject to natural selection.
• C) Genetic drift can result in heterozygous advantage.
• D) Beneficial mutations can be lost from the population.

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Definitions:

Variable Selling Expense

Costs incurred from selling a product that vary directly with the number of units sold, such as commissions and shipping costs.

Specialized Machine

Equipment designed for a specific manufacturing process or product, often custom-made and representing a significant fixed cost.

Contribution Margin

The amount of revenue remaining after deducting the variable costs, indicating the contribution towards the fixed costs and profits.

Annual Production

The total quantity of goods or output produced by a company in a year.