This is a two part question both the math and a written explanation must be incl

Question

This is a two part question both the math and a written explanation must be included. please answewr a and b

Consider the two X-linked genes, z and w, in Drosophila. The two loci are 30 cM apart and each segregates a dominant allele (z+, w+) and a recessive allele (z, w). For each of the following crosses, predict the offspring’s phenotypic frequencies by sex?

a.         Heterozygous female in cis configuration x hemizygous z+w male.

b.         Heterozygous female in trans configuration x hemizygous zw male.

Explanation / Answer

recombinant genotypes are z+w/z+w, z+w/Y, zw+/z+w, and zw+/Y.

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