Bio B: Population Genetics and Human Evolution

There was once a large population of cheetah, but about 12,000 years ago most of the cheetahs were killed off by random chance.  What is this an example of?

• Genetic Drift
• Hardy Weinberg Effect
• Founder Effect
• None of These

When a population is in Hardy-Weinberg Equilibrium.  What is not happening to the species?

• Survival
• Reproduction
• Death
• Evolution

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Sexual selection is a type of...

• Natural Selection
• Mutation
• Small Population Size
• Nonrandom Mating

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This consists of all genes, including all the different alleles for each gene, in a population. 

• Allele Frequency
• Gene pool
• Jean pool
• Population frequency 

What type of selection does the image represent?

• Directional 
• Stabilizing
• Disruptive

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What type of selection does the image represent?

• Directional 
• Stabilizing
• Disruptive

Tags

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What type of selection does the image represent?

• Directional 
• Stabilizing
• Disruptive

Tags

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Genetic drift is most likely to impact a population....

• That has a low mutation rate
• In which natural selection is occurring
• That is very small
• For which environmental conditions are changing

_______ occurs when members of a species are separated by a physical barrier.

• Temporal isolation
• Geographic isolation
• Behavioral isolation
• Sexual isolation

Disruptive selection will favor...

• Both extremes of a trait.
• Average traits.
• One phenotype over another.
• All possible phenotypes

Tags

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