You are studying body color in an African spider and have found that it is controlled by a single autosomal gene with four alleles: B (brown), b^r (red), b^g (green), and b^y (yellow).B is dominant to all the other alleles, and b^yis recessive to all the other alleles.The b^g allele is dominant to b^y but recessive to b^r.You cross a pure-breeding brown spider with a pure-breeding green spider.Predict the genotype of the progeny.

Question

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The pure-breeding brown spider must be homozygous dominant for the B allele (BB) and the pure-breeding green spider must be homozygous for the b^g allele (b^g/b^g). When these two individuals are crossed, all of their offspring will inherit one allele from each parent. Since B is dominant to b^g, all offspring will have a brown body color phenotype. The genotype of the offspring will be heterozygous for the B allele and the b^g allele (B/b^g).

You Are Studying Body Color in an African Spider and Have