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If 9% of the population cannot taste PTC (a recessive trait), what is the frequency of the non-taster allele in the populatio
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Answer #1

Taster = TT, Tt

Non taster = tt

tt = 9% = 9/100 = 0.09

t = √0.09 = 0.3

T = 1 - t = 1 - 0.3 = 0.7

Homozygous dominant = TT = 0.7 × 0.7 = 0.49 = 49%

Heterozygotes = Tt = 2 × 0.7 × 0.3 = 0.42 = 42%

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