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True-breeding red-eyed Drosophila flies ...

True-breeding red-eyed Drosophila flies with plain thoraxes were crossred with pink-eyed flies with striped thoraxes
`{:("Red eye",xx,"Pink eye"),("Plain thorx",,"striped throrax"):}`
The `F_(1)` flies were then test crossed against the double recessive
The following `F_(2)` generation resulted from the cross :
`{:(80,16,12,92),("Red eye","Red eye","Pink eye","Pink eye"),(underset("thorax")("Plain"),underset("thorax")("Striped"),underset("thorax")("Plain"),underset("thorax")("Striped")):}`
What percentage number of recombinats resulted from the test cross ?

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