In dogs, black coat (A) dominates over brown (a), and short-legged (B) dominates over normal leg length (b)

In dogs, black coat (A) dominates over brown (a), and short-legged (B) dominates over normal leg length (b). Choose the genotype of a black short-legged dog, heterozygous only by the length of its legs

AABb is homozygous dominant in the first sign and heterozygous in the second.

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