Fur color is determined by two loci, A and B, in minks. Two brown mink mate and produce a large litter of baby minks with the following phenotypic ratios: 12/16 brown; 3/16 black; and 1/16 white. What is the genotype of the black progeny? O A. A_ B_ O B. A B_ and A_ bb O C. aa bb O D. aa B_ E. A BB

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A: Aa Bb cc × aa Bb Cc (1/2×3/4×1/2) + (1/2×3/4×1/2) =3/16+ 3/16 =6/16 =3/8

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.