Allele Frequency

• Frequency of the dominant allele

• Frequency of the recessive allele

• Frequency of the homozygous recessive genotype

• Frequency of the heterozygous genotype

Calculate the frequency of the dominant allele in this population of beetles. Make sure to write your answer in percent form with the percent sign and no numbers after the decimal. (example: 24%)

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NGSS.HS-LS4-3

Someone steps on some bugs and randomly removes their alleles from the population. This is an example of

• gene flow

• genetic drift

• speciation

• allele frequency

Alleles that improve survival will decrease in frequency in the next generation.

• True

• False

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What is allele frequency?

• The number of alleles in a population

• The proportion of a specific allele among all allele copies in a population

• The number of dominant alleles in a population

• The number of recessive alleles in a population

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Which equation is used to calculate allele frequency in a population?

• Hardy-Weinberg equation

• Mendel's law of segregation

• Darwin's theory of evolution

• Lamarck's theory of inheritance

In a population of 100 individuals, if 40 have the allele A, what is the frequency of allele A?

• 0.2

• 0.4

• 0.6

• 0.8

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What does a change in allele frequency indicate in a population?

• Genetic drift

• Natural selection

• Mutation

• All of the above

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If the allele frequency of a recessive allele is 0.3, what is the frequency of the dominant allele?

• 0.3

• 0.5

• 0.7

• 1.0

Tags

NGSS.HS-LS3-3

Which factor does NOT affect allele frequency in a population?

• Mutation

• Genetic drift

• Random mating

• Gravity

Tags

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