Biology, 14.02.2020 16:05 andrespacheco5888

In mice, black coat color (B) is dominant over brown (b), and a solid pattern (S) is dominant over white spotted (s). Color and spotting are controlled by genes that assort independently. A homozygous black, spotted mouse is crossed with a homozygous brown, solid mouse. All the F1 mice are black and solid. A testcross is then carried out by mating the F1 mice with brown, spotted mice. a. Give the genotypes of the parents and the F1 mice. b. Give the genotypes and phenotypes, along with their expected ratios, of the progeny expected from the testcross. Testcross: Black, solid (BbSs) X Brown, spotted (bbss)

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In mice, black coat color (B) is dominant over brown (b), and a solid pattern (S) is dominant over w...