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Transcript
Chromosome Mapping The following data were collected from repeated matings of fruit flies (D. melanogaster). The data record the frequency, to 0.1 percent, of the recombinant characteristics for seven genes located on the same side of the centromere on chromosome 3. The veinlet gene is located one mapping unit from the centromere and acts as a useful bench mark for comparison. Construct a scaled chromosome map for chromosome 3 of D. melanogaster. A suggested scale is 1 mapping unit = 1 mm. Show the locations of the eight genes including the veinlet gene. Scarlet eyes Cardinal eyes Hairy body Hairless bristles Javelin bristles 7.3 50.3 Stripe body 35.5 Scarlet eyes Cardinal eyes Javelin bristles Stripe body 24.8 18.0 12.7 Minute bristles 31.5 Minute bristles Veinlet veins Hairy body 36.7 74.6 26.4 43.0
