Homozygotes

... dominant person. it is more common to find heterozygotes nowadays because of a mechanism called "stabilizing selection". it cuts off the homozygotes part and preserves heterozygote individuals because perhaps heterozygotes are more favorable to environment. that is part of natural selection ...

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... dominant person. it is more common to find heterozygotes nowadays because of a mechanism called "stabilizing selection". it cuts off the homozygotes part and preserves heterozygote individuals because perhaps heterozygotes are more favorable to environment. that is part of natural selection ...

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... Attempt at a solution: I can see that it is a 9:3:3:1 ratio, but I do not understand if the question is simply asking for the proportion of homozygotes in this progeny or if it is asking for the true breeders in 113 hairy, elongate phenotype? The solution possibility: A. 1/3 B. 1/4 C. 1/9 ...

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The dominant allele is present in both heterozygotes and homozygotes so no, its not that simple.

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... is generally clean and you come across sites as in your examples, I would suspect heterozygosity at both sites. Ideally, it is best to have known homozygotes as controls for interpreting such data.

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