NATS 1940 Lecture Notes - Lecture 1: Genotype Frequency, Allele Frequency, Genetic Drift
14 Nov 2018
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What are the frequencies of genotypes aa, aa, and aa, respectively: 25, 40 and 35, 12. 5, 20 and 17. 5, 0. 25, 0. 40 and 0. 35, 0. 125, 0. 20 and 0. 175, 0. 50, 0. 80 and 0. 70 answer: The rule of multiplication the probability of two or more independent events occurring together is equal to the product of their individual probabilities: example: tossing a coin, odds of (cid:862)heads(cid:863) = 0. 5 (cid:894)or 50%(cid:895, toss a coin twice. Odds of getting heads on both the first toss and the second toss = 0. 5 * 0. 5 = 0. 25 (or 25%) The frequency of the homozygous genotype in a population should be equal to the odds of that genotype being conceived in any given mating. The frequency of the homozygous dominant genotype will therefore be p*p = p2. The frequency of the homozygous recessive genotype will be. Frequency of ova carrying a dominant allele q*q = q2.
