On the fur farm, 225 individuals were produced from one pair of minks for several years. Of these, 167 had brown fur and 57 were bluish gray

On the fur farm, 225 individuals were produced from one pair of minks for several years. Of these, 167 had brown fur and 57 were bluish gray. Determine: 1) which of the signs is dominant; 2) what are the genotypes and phenotypes of parents and offspring.

1) The dominant feature is the brown color of the fur;
2) if the dominant trait is designated by the letter A, then the parent individuals are brown with the Aa genotype; F1 – 1/4 brown with the AA genotype, 1/2 brown with the Aa genotype, 1/4 bluish-gray with the aa genotype.

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