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Black coat color is dominant over white coat color in guinea pigs. in addition to coat color, rough coat is dominant over smooth coat.

b. Demonstrate a cross between a heterozygous black/homozygous smooth and homozygous white/heterozygous rough. describe the phenotypes as fractions? ​

User Bmelton
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heterozygous black pigs where intercrossed then the the probability that the first two offspring is black is 75%.

User Weismat
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