Genetic Drift

Genetic drift is likely to be seen in a population

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

A few deer wander out of their native woods into a completely new park where no deer had ever been before. They go on to create an entirely new population.

• Genetic Drift
• Natural Selection
• Non-random mating
• Mutation

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What do you call all of the genes in a population?

• Gene pool
• Relative Frequency
• Genetic Drift
• Allele pool

What does the Hardy-Weinberg equilibrium measure?

• changes in allele frequencies
• numbers of mutations
• goodness of fit
• genetic diversity

The Hardy-Weinberg Model is...

• available at local hobby stores and retailers throughout the Greater Tazewell area.
• a mathematical tool that biologists can use to predict allele frequencies and determine whether or not evolution is occurring within a population.
• always occurring within individual organisms in nature.
• only useful in the lab and cannot be practically applied to real-world populations of organisms.  

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At Hardy-Weinberg equilibrium, there is no...

• Mutations

• Gene flow

• Genetic drift

• All of the above

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Mutations are important because they bring about

• death of the organism in which they develop

• genetic variation needed for a population to evolve

• benefits for the individual, not for the population

• Hardey-Weinberg equilibrium within a population

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Genetic drift is change in the allele frequency of a population due to...

• random chance

• natural selection

• non-random mating (sexual selection)

• artificial selection

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A type of genetic drift in which small groups of organisms separate from a larger population and form new small colonies.

• Gene Flow

• Founder Effect

• Natural Selection

• Artificial Selection

Genetic diversity is ultimately/mainly the result of

• meiosis

• viruses

• mutations

• reproduction

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