In a cross in Drosophila involving the X-linked recessive eye mutation white and

Question

In a cross in Drosophila involving the X-linked recessive eye mutation white and the autosomally linked recessive eye mutation sepia (resulting in a dark eye), predict the F1 results of crossing true-breeding parents of the following genotypes: Cross A white females X sepia males Cross B sepia females X white males What is the progeny ratio from Cross A? All progeny have white eyes. All sons have white eyes, and all daughters have normal eyes. All daughters have white eyes, and all sons have normal eyes. All sons have white eyes, and all daughters have sepia eyes. All progeny have sepia eyes. All progeny have normal eyes. Submit Answer Tries 0/2 hat is the progeny ratio from Cross B? All daughter have white eyes, and all sons have sepia eyes. All progeny have normal eyes. All sons have white eyes, and all daughters have normal eyes. All daughter have white eyes, and all sons have normal eyes. OAll progeny have sepia eyes. O All progeny have white eyes. Submit Answer Tries 0/2

Explanation / Answer

The progeny from cross A:

All the sons have white eyes and daughters have sepia eyes

The progeny from cross B :

All progeny will have sepia eyes

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