The Effects of Genetic Mutation on a Species Are Systematic,yet

question 45

Multiple Choice

The effects of genetic mutation on a species are systematic,yet mutation is a randomly occurring process in individual organisms.How can this apparent discrepancy be best explained?

• A)Natural selection systematically eliminates organisms with mutations that increase fitness.
• B)Natural selection systematically favors the reproduction of organisms with mutations that increase fitness.
• C)Natural selection systematically favors the reproduction of organisms with mutations that decrease fitness.
• D)Natural selection systematically eliminates organisms with exaptations.

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Definitions:

Expected Frequencies

The counts that one would expect in a statistical distribution, based on a specific hypothesis or model.

Chi-Squared Test Statistic

A statistical measure used to determine the goodness of fit between observed values and values expected theoretically.

Level of Significance

Another term for significance level, indicating the threshold below which the null hypothesis is rejected in statistical tests.

Degrees of Freedom

refers to the number of independent values in a statistical calculation that can vary without violating any given constraints.