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Need help with this! Please write out and explain to me. Thank you

A fruit fly that is heterozygous for the autosomal recessive mutations black (b body, purple (pu) eye color, and dumpy (dp) wing was test crossed to a fly that was homozygous for black body, purple eye and dumpy wings. The following progeny were produced. Wild type Purple Dumpy Black Purple, dumpy Black, purple Dumpy, black Black, purple, dumpy 207 10 378 30 31 375 208 1250 A. What are the genotypes of the flies in the F1 test cross? B. which of the genes are linked? If all the genes are linked, what is their gene order and the map distances between the genes? C. Calculate the coefficient of coincidence. Is there positive or negative interference?

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