popgenLAB

# popgenLAB - Biology 3A Laboratory Name Layla Fijany...

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Biology 3A Laboratory Name: Layla Fijany Population Genetics Worksheet Lab Day & Time: Bio 3A - AM PM DATA USED 1. Calculate the allelic and genotypic frequencies for the PTC Taste Test. Show your work. Individual Results: Taster 24 Nontaster 4 Class Results: Number of tasters 24 = 24/28 = 86 % (TT + Tt) Number of non tasters 4 = 4/28 = .14 % (tt) Total 28 q2 = .14 q = .37 Frequency of t allele = . 37 p= 1- q = 1- .37= frequency of T allele = .63 p2 = genotype of TT = .62 2 = 39 % of the class 2pq = genotype of Tt = 2(.63)(.37) = 49 % of the class 2. If a class member is known to be a taster, what is the chance that he or she is homozygous for the T allele? .39 = 39% 3. Calculate the allelic and genotypic frequencies for the Sodium Benzoate (SB) Taste Test. Show your work. Individual Results: Taster 15 Nontaster 12 Class Results: Number of tasters 15 = 15/27 = 56 % (BB + Bb) Number of non tasters 12 = 12/27 = 44 % (bb) Total 27 q2 = .45 q = .67 Frequency of b allele = .67 p = 1 – q = 1-.67= frequency of B

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## This note was uploaded on 02/28/2012 for the course BIO 3A taught by Professor Huntley during the Spring '10 term at Saddleback.

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popgenLAB - Biology 3A Laboratory Name Layla Fijany...

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