The Two Graphs Show the Change in Allele Frequency, P

question 29

Multiple Choice

The two graphs show the change in allele frequency, p, over 100 generations. Each graph shows 10 different populations, all experiencing the same evolutionary forces. What is the most likely difference between the populations shown in the top graph compared to the populations in the bottom graph?

• A) There is no difference between the populations; the differences in the graphs are due to chance.
• B) The populations in the graph on top have a longer generation time than the populations in the bottom graph.
• C) The populations in the graph on top are experiencing genetic drift; the populations in the graph on bottom are experiencing directional selection.
• D) The population sizes in the graph on top are smaller than the population sizes in the graph on the bottom.

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Definitions:

Lifetime

The duration of time that an individual lives, from birth to death.

Duration Of Intercourse

The length of time from the initiation to the completion of sexual activity between partners.

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Units of time equal to sixty seconds, commonly used to measure duration or time intervals.

Sexual Response Cycle

A sequence of physical and emotional phases that occurs during sexual activity, including arousal, plateau, orgasm, and resolution.