Allele Frequency

• Frequency of the dominant allele

• Frequency of the recessive allele

• Frequency of the homozygous dominant genotype

• Frequency of the heterozygous genotype

Tags

NGSS.HS-LS4-3

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%)

Tags

NGSS.HS-LS3-3

Select ALL of the following that violate the Hardy-Weinberg assumptions and would lead to a change in allele frequencies in a population.

• natural selection

• large population

• no mutations

• nonrandom mating

• no migration

Tags

NGSS.HS-LS4-4

When allele frequencies remain constant, a population is evolving.

• True

• False

In a population genetics study, what does the term 'allele frequency' refer to?

• The number of alleles in a population

• The proportion of a specific allele among all alleles for a gene in a population

• The number of individuals carrying a specific allele

• The rate at which an allele mutates

Tags

NGSS.HS-LS3-3

Which of the following equations represents the Hardy-Weinberg equilibrium for allele frequencies?

Tags

NGSS.HS-LS4-3

If the frequency of allele A is 0.7 in a population, what is the frequency of allele a assuming only two alleles exist?

• 0.3

• 0.5

• 0.7

• 0.9

Tags

NGSS.HS-LS4-3

Which factor can cause a change in allele frequencies in a population?

• Random mating

• Genetic drift

• Large population size

• No mutations

Tags

NGSS.HS-LS4-4

In a population of 1000 individuals, 360 have the homozygous recessive genotype. What is the frequency of the recessive allele?

• 0.36

• 0.6

• 0.4

• 0.64

Tags

NGSS.HS-LS4-3

What is the effect of genetic drift on allele frequencies in small populations?

• It stabilizes allele frequencies

• It causes allele frequencies to fluctuate randomly

• It increases genetic variation

• It prevents evolution