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(Solved): You are given the data from a fruit fly testcross with the linked gene loci green thorax ( p+ ) and ...



You are given the data from a fruit fly testcross with the linked gene loci green thorax (

p+

) and brown puparium (

b+

). The recessives are purple thorax (p) and black puparium (b). A heterozygote, with both dominants on one homolog and both recessives on the other homolog (cis conformation), is test crossed. Indicate the cross and draw the chromosomes with appropriately positioned alleles below the genotypes. This is the data from the cross: 85 Green thorax and brown pupaium; 97 Purple thorax and black puparium; 29 green thorax and black puparium; 35 Purple thorax and brown puparium. Write the symbols for each of these offspring genotypes, label which are recombinants and which are parentals. What is the percent recombination between locus "

p

" and locus "

b

"? What is the distance between these loci? What is the probability of forming a recombinant gamete? What about a parental gamete? (3pts)

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