The Rates of Evolutionary Change in DNA

question 48

Multiple Choice

The rates of evolutionary change in DNA:

• A)are highly variable among different gene families.
• B)are constant in gene families with a diversity of members.
• C)can only be determined in conserved genes.
• D)are constant among different gene families and thus are used to estimate the time of divergence.
• E)are zero.

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Definitions:

One-sample T Test

A statistical test used to determine whether a sample mean significantly differs from a known or hypothesized population mean.

Sample Mean

The average value obtained from a sample, calculated as the sum of all sampled observations divided by the number of observations.

Standard Deviation

A measure that quantifies the amount of variation or dispersion of a set of data values.

Null Hypothesis

In statistical hypothesis testing, the default assumption that there is no significant difference or effect.