Genetics Lab. Quiz #7 Due: April 30, 2010 Presented below are the results of the PTC taster phenotype and TS2R38 genotype analysis for the 2010 Genetics students at Montana State University-Billings. Phenotype Number Genotype Number Taster 23 TT 6 Nontaster 9 Tt 10 tt 8 1. Estimate the number of heterozygous individuals in the Genetics class. You may assume you are a population at genetic equilibrium. Show your work. 2. Calculate the observed genotype frequencies for the above population. Record the values above. Show your work. 3. Calculate the frequency of the “T” allele and the frequency of the “t“ allele for the above population. Show your work. 4. Predict the genotype frequencies for this population, assuming that it is at genetic equilibrium. Record the values in the table above. Show your work. 5. What is your TS2R38 genotype? (if your PCR, did not work, identify the genotype in lane 5 of the morning section’s gel) Shown below is the number of differences between NADH gene sequences of three primate species. Chimp and Vervet: Chimp and Bonobo: Bonobo and Vervet: 190 44 196 Construct a distance matrix for these three species. Construct a phylogenetic tree for these three species. Following the evolutionary split of Chimp and Bonobo, how many mutations occurred in the Chimp NADH gene?