Which of the Following Is a True Statement Concerning Genetic

question 78

Multiple Choice

Which of the following is a true statement concerning genetic variation?

• A) It is created by the direct action of natural selection.
• B) It arises in response to changes in the environment.
• C) It must be present in a population before natural selection can act upon the population.
• D) It tends to be reduced by the processes involved when diploid organisms produce gametes.
• E) A population that has a higher average heterozygosity has less genetic variation than one with a lower average heterozygosity.

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Definitions:

Factorial Design

An experimental strategy that involves manipulating more than one independent variable to determine their separate and combined effects on a dependent variable.

Independent Variables

Variables in an experiment that are manipulated or changed to observe their effects on dependent variables.

Main Effects

A statistical term referring to the individual impact of each independent variable on the dependent variable in an experiment, distinguishing from interactions between variables.

Factorial Design

Factorial design is a statistical test used in experiments where there are two or more independent variables and it evaluates the effect of each, as well as the interaction between them, on the dependent variable.