Which Statement Concerning Polygenic Traits Is Not True

question 24

Multiple Choice

Which statement concerning polygenic traits is not true?

• A) They are governed by more than one genetic locus.
• B) Their expression is often influenced by genetic/environmental interactions.
• C) The alleles have an additive effect on the phenotype.
• D) They are continuous traits
• E) The most frequently discussed are skin, hair and eye color.

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Definitions:

Contribution Margin

The amount of revenue remaining after subtracting variable costs, used to cover fixed costs and generate profit.

Mixed Costs

Expenses that have both a fixed and variable component, changing in total with the level of activity but also including a constant element.

Fixed Costs

Fixed costs are expenses that remain constant for a company regardless of how much it produces or sells, such as rent, salaries, and insurance premiums.

Variable Costs

Costs that fluctuate in direct proportion to the amount of production or sales figures.