Question

2. Two Dalmatians had a large litter of 10 puppies. Seven of them have black spots, while 3 do not. What would the genotypes of the two parents need to be for this result? Create a Punnett square to support your answer.

Answer 1

The parents would have both have to be Bb or heterozygous for black spots in order to have 7 out of 10 or about 75% of puppies with black spots.

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-HOPS