Mermaid scientific riddle
If allele frequencies for hair color are respectively 3/8 (G, green allele) and 5/8 (g, blue allele), the probablility that Mother mermaid is heterozygous for the green hair is 5/8 from Bayes theorem.
Prior probabilities of the three genotypes:
Prior ratio (GG/Gg)
9/30 = 3/10
(daugther with green allele G) -> 2
3/10 x 2 = 3/5
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