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Hardy Weinberg Problems

Hardy Weinberg Problems In a population of 100 pea plants, 16 show the recessive trait of green seeds. Tell the following: The frequency of Y ________ The frequency of y ________ % of population that is homozygous dominant _______ % of population that is heterozygous _______

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Hardy Weinberg Problems

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  1. Hardy Weinberg Problems In a population of 100 pea plants, 16 show the recessive trait of green seeds. Tell the following: The frequency of Y ________ The frequency of y ________ % of population that is homozygous dominant _______ % of population that is heterozygous _______ % of population that is homozygous recessive _______ % of population with yellow seeds _________

  2. 0.6 • 0.4 • 36% • 48% • 16% • 84%

  3. In a population of 100,000 people, 36,000 cannot roll their tongue, a recessive trait. Tell the following: • The frequency of R ________ • The frequency of r ________ • % of population that is homozygous dominant _______ • % of population that is heterozygous _______ • % of population that is homozygous recessive _______ • % population can roll tongue _________ • % population cannot roll tongue __________

  4. 0.4 • 0.6 • 36% • 48% • 16% • 64% • 36%

  5. If the frequency of the dominant allele is 0.5, answer the following: • What is the frequency of the recessive allele? __________ • What is the percentage of individuals with the homozygous dominant genotype? _______ • What is the percentage of individuals with the heterozygous genotype?________ • In a population of 5000, how many are heterozygous? • In a population of 200, how many are homozygous recessive? ____________

  6. 0.5 • 25% • 50% • 2500 • 50

  7. In snails, shell color can be dark, medium, or light. In a population of 300 snails, 192 have dark shells. • The frequency of S ________ • The frequency of s ________ • % of population that is homozygous dominant _______ • % of population that is heterozygous _______ • % of population that is homozygous recessive _______

  8. 0.8 • 0.2 • 64% • 32% • 4%

  9. In a population of 500,000 rabbits, 405,000 show the dominant phenotype of a bent ear. Determine the following: a. The frequency of E ________ b. The frequency of e ________ c. % of population that is homozygous dominant _______ • % of population that is heterozygous _______ • % of population that is homozygous recessive _______

  10. 0.56 • 0.44 • 31.36% • 49.28% • 19.36%

  11. Suppose that one gene locus determines stripe patterns ins skunks. SS skunks have two broad stripes; Ss skunks have two narrow stripes; ss skunks have white speckles down their backs. A sampling of a population of skunks found 65 broad-striped skunks; 14 narrow-striped, and 1 speckled. Determine the allele frequencies. S = _______ s = _______

  12. In a population of 200 mice, 98 are homozygous dominant for brown coat color (BB), 84 are heterozygous, and 18 are homozygous recessive. a. The allele frequency for B = ______ b. The allele frequency for b = ______ c. The genotype frequencies for this population are _____ BB, _______ Bb, and ______bb.

  13. p = .7 • q = .3 • 49% BB 42% Bb 9% bb

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