Biologists Now Routinely Test for Homology Between Genes in Different

question 49

Multiple Choice

Biologists now routinely test for homology between genes in different species. If genes are determined to be homologous, it means that they are related ________.

• A) by descent from a common ancestor
• B) because of convergent evolution
• C) by chance mutations
• D) in function but not structure

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Definitions:

Nominal Data

Data that is categorized without a natural order or ranking, used for labeling variables without a quantitative value.

Population

The complete collection of objects or people that can be used to draw samples for statistical study.

Multinomial Experiment

A statistical experiment that can result in multiple outcomes, where each outcome has a fixed probability of occurring.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution or calculation, essential for determining the preciseness of an estimation or hypothesis test.