Question: In mice, black coat hair (B) is dominant over brown (b), and a solid pattern (S) is dominant over…
GENETICS QUESTION
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Show transcribed image text In mice, black coat hair (B) is dominant over brown (b), and a solid pattern (S) is dominant over white spotted (s). Color and spotting arc controlled by genes that assort independently. A homozygous black, spotted mouse is crossed with a homozygous brown, solid mouse. All the F_1 mice are black and solid. A testcross is then carried out by mating the F_1 mice with brown, spotted mice. Give the genotypes of the parents and the F_1 mice. Give the genotypes and phenotypes, along with their expected ratios, of the progeny expected from the testcross. Short hair (S) in rabbits is dominant over long hair (s). The following crosses are carried out, producing the progeny shown. Give all possible genotypes of the parents in each cross.
In mice, black coat hair (B) is dominant over brown (b), and a solid pattern (S) is dominant over white spotted (s). Color and spotting arc controlled by genes that assort independently. A homozygous black, spotted mouse is crossed with a homozygous brown, solid mouse. All the F_1 mice are black and solid. A testcross is then carried out by mating the F_1 mice with brown, spotted mice. Give the genotypes of the parents and the F_1 mice. Give the genotypes and phenotypes, along with their expected ratios, of the progeny expected from the testcross. Short hair (S) in rabbits is dominant over long hair (s). The following crosses are carried out, producing the progeny shown. Give all possible genotypes of the parents in each cross.
