In Drosophila,the allele red eyes (bw+)is dominant to the allele for brown eyes (bw).At another gene locus on the same chromosome,the allele for thin wing veins (hv+)is dominant to the allele for heavy wing veins (hv).Flies homozygous for bw and hv+ are crossed to flies homozygous for bw+ and hv to obtain doubly heterozygous F 1 progeny. -Given that these two gene loci are very closely linked,the genotypic ratio in the F₂ generation should be closest to A)1:2:1 B)1:1:1:1 C)9:3:3:1 D)3:1

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The Answer of In Drosophila,the allele red eyes (bw+)is dominant to the allele for brown eyes (bw).At another gene locus on the same chromosome,the allele for thin wing veins (hv+)is dominant to the allele for heavy wing veins (hv).Flies homozygous for bw and hv+ are crossed to flies homozygous for bw+ and hv to obtain doubly heterozygous F 1 progeny. -Given that these two gene loci are very closely linked,the genotypic ratio in the F₂ generation should be closest to A)1:2:1 B)1:1:1:1 C)9:3:3:1 D)3:1

In Drosophila,the Allele Red Eyes (Bw+)is Dominant to the Allele