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Exercise 6 Hardy-Weinberg Equilibrium
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Exercise 6 Hardy-Weinberg Equilibrium
Exercise 6 Hardy-Weinberg Equilibrium
EXERCISE 6 HARDY-WEINBERG EQUILIBRIUM Work in a small group or alone to complete this exercise. In human population X, consider the simple Mendelian trait for freckles. F is the dominant allele and f is the recessive allele. In- dividuals who are homozygous dominant (FF) or heterozygous (Ff) for the trait express freckles. Individuals who are homozygous recessive (ff) for the trait do not express freckles. In this popu- lation, 30% (0.3) of the alleles are recessive (f) and 70% (0.7) are dominant (F). 1. Use the Hardy-Weinberg equation to deter- mine the genotype frequencies we should expect in the next generation. Be sure to show your work. 2. You have collected data on the observed genotype frequencies of the next gener- ation. They are 60% FF, 30% Ff, and 10% ff. Based on these observations and your ex- pectations, is this trait currently evolving in this population? Why or why not?
EXERCISE 6 HARDY-WEINBERG EQUILIBRIUM Work in a small group or alone to complete this exercise. In human population X, consider the simple Mendelian trait for freckles. F is the dominant allele and f is the recessive allele. In- dividuals who are homozygous dominant (FF) or heterozygous (Ff) for the trait express freckles. Individuals who are homozygous recessive (ff) for the trait do not express freckles. In this popu- lation, 30% (0.3) of the alleles are recessive (f) and 70% (0.7) are dominant (F). 1. Use the Hardy-Weinberg equation to deter- mine the genotype frequencies we should expect in the next generation. Be sure to show your work. 2. You have collected data on the observed genotype frequencies of the next gener- ation. They are 60% FF, 30% Ff, and 10% ff. Based on these observations and your ex- pectations, is this trait currently evolving in this population? Why or why not?