What offspring genotypes would you expect

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In Drosophila, genes a and b are located at positions 22.0 and 42.0 on chromosome 2, and genes c and d are located at positions 10.0 and 25.0 on chromosome 3. A fly homozygous for the wild-type alleles of these four genes was crossed with a fly homozygous for the recessive alleles, and the F1 daughters were backcrossed to their quadruply recessive fathers. What offspring genotypes would you expect from this backcross, and in what proportions?

Reference no: EM13195429

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