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Can persist for many generations. Polydactyly is dominant, as is foot feathering. (actually there are several genes for each, but the predominant ones of both are dominant--eac does have a recessive gene, though).
Can persist for many generations. Polydactyly is dominant, as is foot feathering. (actually there are several genes for each, but the predominant ones of both are dominant--eac does have a recessive gene, though).