Smurfs use the same XY method of sex determination as humans. The wild type smur

Question

Smurfs use the same XY method of sex determination as humans. The wild type smurf is blue, fuzzy, and industrious. Mutant smurfs can be white, smooth, or lazy. These three genes are unlinked, and each wild type allele (W, S, and L) exerts classic dominance over the mutant allele (w, s, and l). The lazy gene is coded on the X chromosome. What phenotypic and genotypic ratios are expected in the offspring from the following cross between a blue, smooth, industrious female smurf with her white, fuzzy, and lazy husband?

Ww ss LL × ww Ss l-

Explanation / Answer

Cross between a blue, smooth, industrious female species with her white, fuzzy, and lazy husband will have the offspring with the following genotypes.

Ww ss LxLx × ww Ss lxly = WwSsLxlx (8/64, Blue, fuzzy, industrious females),

WwSsLxly (8/64, Blue, fuzzy, industrious males),

WwssLxlx (8/64, Blue, smooth, industrious females),

WwssLxly (8/64, Blue, smooth, industrious males),

wwSsLxlx (8/64 white, fuzzy, industrious females),

wwSsLxly (8/64 white, fuzzy, industrious males),

wwssLxlx (8/64 white, smooth, industrious males),

wwssLxly (8/64 white, smooth, industrious males).

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