Hardy Weinberg Questions

800 WordsMar 7, 20134 Pages
Hardy-Weinberg Principle Name: _______________________________ Period: ____ Show all work and box your answer for each of the following questions! 1. In a population at genetic equilibrium, the frequency of allele A is 0.5. a. What is the frequency of the homozygous dominant genotype (AA)? b. What is the frequency of the heterozygous genotype (Aa)? 2. If 16% of the individuals in a population at genetic equilibrium are recessive (aa). a. What is the frequency of the recessive allele in the population? b. What is the frequency of the dominant allele? 3. If the genotype frequencies in a population at genetic equilibrium are 0.36 TT, 0.48 Tt, and 0.16 tt, what…show more content…
For the question above, what is the frequency of the dominant allele in the US population? c. For the question above, approximately what proportion of the population would be expected to be carriers of the PKU allele? Summary Question: Restate each of the Hardy-Weinberg conditions. Under each, elaborate by explaining each in greater detail. Define the term and explain what each is and how it is important. Also explain how each may be violated in nature and how often you think that the condition may be violated. An example for the first condition is given below. 1. No Mutations: Mutations refer to a changes in the DNA code. Mutations occur regularly, are the source of variation of traits in a species, and are called the raw material upon which natural selection acts and can lead to evolutionary change in phenotype. Mutations of the DNA mean that the Adenine, Thymine, Guanine and/or Cytosine changes. Changes can be deletions, substitutions, or inversions. Most mutations would be disadvantageous, but can also be advantageous. Variation of phenotype in a population allows a species to survive in a changing environment. 2. No Migration: 3. 4.
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