Jady is concerned about the genetic diversity of earthworms in her garden. She s

Question

Jady is concerned about the genetic diversity of earthworms in her garden. She samples 90 worms and genotypes them at the PGM locus. This locus has two alleles, named Fand S. She finds 44 FF, 20 FS, and 26 SS individuals. A (2 pts) What are the frequencies of the F and S alleles in this population? B. (3 pts) What is the expected numbers of the three genotypes in this population under the Hardy- Weinberg model C. (1 pt) What is the observed frequency of heterozygotes in this population? D. (4 pts) Use a chi-squared analysis to test for departure from the Hardy-Weinberg model. Be sure to state your degrees of freedom, P-value, and conclusion. Cliek Save and Suhmit to save and subt, CiokSaoe Al Ansers t Save All Answers Save and Submit MacB

Explanation / Answer

a )total no. of worm population = 90 total no. of alleles in a population = 90* 2 = 180

the total number of F alleles in the population is 44*2+ 20= 108

Thus, the allele frequency of Fis (108/180) = 0.6 or 60%. Similarly, the total number of S allels in the population is (26 x 2) + (20 x 1) = 72.

The allele frequency of the S is (72/180) = 0.4 or 40%.

b) n a real world population, we can only see phenotypes, not genotypes or alleles. However, in a population of genotypes FF, FS, SS.

C) observed frequency of hetrozygotes is 22/180= 0.12 or 12%

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