Question

genetics problem:

4.2. In the following sets of data, calculate allele and genotype frequencies in a assuming Hardy-Weinberg equilibrium; in b and c, test to see if the population is in H-W equilibrium): a) Allele A is dominant to a: 91 A-9 aa in population b) One hundred persons from a small town in Pennsylvania were tested for their MN blood types. The number of individuals with the particular genotypes was found to be: 41 MM, 38 MN, and 21 NN. c) Alleles F and Sare codominant at the alcohol dehydrogenase locus in Drosophila 137 FF, 196 FS, 87 SS

Answer 1

6 Allele Allele A= a= al 9 then A²+ a² + 2A a at Given that aa = 9 then a = 9 - 3 in 100 the frequency cis 13 for recessive Dominent allele frequeny. |- :3 2 .7 then - AA = .49 or 49 na = .42 or 42. 41 mm 38 MN 21 NN mm Allele 20th frequency = 2x 41+88 200 2 .4 qwth N ov 8X21738 T.6 .4

FF = Ps ss 137 196 87 aft PS 2x420 = 2X 137+ 196 840 SS = 559 frequeny 2x S + FS 2X4zo 2441