Section 1: Dominance Q1) The following shows the absolute viabilities of three genotypes, that do not differ in fecundity: A1A1 A1A2 A2A2 Survival Rate 0.50 0.40 0.20 A) What are the relative fitnesses of the three genotypes? B) Calculate the selection coefficient s, and the dominance coefficient h.
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To calculate the relative fitness of a genotype, we divide its absolute viability by the highest absolute viability among all genotypes. In this case, the highest absolute viability is 0.5. Relative fitness of A1A1A1 genotype = 0.5 / 0.5 = 1 Relative fitness of Show more…
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Selection coefficients: If three genotypes at a locus showing partial (incomplete) dominance have survival rates as shown, determine the relative fitness and the value of s and hs.
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