In Drosophila, the yellow (y) and the white (w) gene are both X-linked and recessive and...

In Drosophila, the yellow (y) and the white (w) gene are both X-linked and recessive and 1 m.u. apart. You cross a true breeding yellow female with wildtype red eyes with a male with wildtype body color and white eyes. You obtain all wildtype females in the F1. You testcross an F1 female with a yellow bodied male with white eyes.

What is the expected proportion of the testcross males that are yellow with white eyes? Please explain your answer.

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gladiator answered 1 year ago

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