A Study of Certain Nuclear Genes in Humans and Chimpanzees

question 8

Multiple Choice

A study of certain nuclear genes in humans and chimpanzees shows that the two species differ in 5 percent of their DNA bases.Base substitution mutations occur at a rate of 1 percent per one million years.How many million years ago did these species diverge?

• A)0.5
• B)1
• C)3
• D)5

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Definitions:

Market Structure

The organization and characteristics of a market, including the number and size of firms, product differentiation, and entry and exit barriers.

Homogeneous Products

Goods that are seen as identical by consumers, making them perfect substitutes for one another.

Perfectly Competitive

A market structure characterized by a large number of small firms, homogeneous products, and free entry and exit.

Monopolistically Competitive

Describes a market structure where many companies sell products that are similar but not identical, allowing for firms to have some market power.