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Some fruit flies have an autosomal mutation that causes the recessive white-eyes to appear compared to...

Some fruit flies have an autosomal mutation that causes the recessive white-eyes to appear compared to the wild-type (dominant) red eyes, while others have an X-linked mutation that causes the same varieties. You are presented with two populations of flies in unmarked tubes: one that has the autosomal white-eye mutation, and a population that has the X-linked mutation for white-eye. Assuming you have separated the pure breeding red and white-eyed parents in each population, What is the set of two crosses and their results that will help you determine which population is autosomal, and which is X-linked?

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Answer #1

We would have to perform reciprocal cross in order to know weather the trait is sex linked or autosomal.

1st cross

white eyed male(mutant) x red eyed female(wild) :only red eyed male will be produced if mutation is autosomal

2nd Cross

wild type male x mutant female

red eyed females and white eyed males will be poduced which suggest sex linked disease

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