Problem:

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?

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

2. heterozygous female in trans configuration x hemizygous zw male

Could someone help to explain the answer of these questions.