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|Session 29 Hardy-Weinberg |Leader: |Olivia P. |

|Supplemental Instruction | | |

|Iowa State University | | |

| |Course: |BIOL 211 |

| |Instructor: |Dr. Boury |

| |Date: |11/12/2019 |

1. What is the smallest unit that can evolve?

2. Define allele and genotype frequency.

3. Write out the allele and genotype equations.

4. Diploid organisms have how many genetic loci for each gene

5. What is the Hardy-Weinberg equation?

• What are p and q in this equation?

• Which frequencies would should dominant, recessive and heterozygous alleles?

6. A population of sheep is in Hardy-Weinberg equilibrium. The allele for white wool (W) has an allele frequency of 0.19, and the allele for black wool (w) has an allele frequency of 0.81. What is the percentage of heterozygous individuals in the population?

a. 66% b. 31% 4% 15%

7. In corn, purple kernels are dominant to yellow. A random sample of 100 kernels is taken from a population in Hardy-Weinberg equilibrium. It is found that 9 kernels are yellow, and 91 kernels are purple. What is the frequency of the yellow allele in this population?

a. 0.49 b. 0.70 c. 0.09 d. 0.30

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