Bio 350 Summer 2022 Problem Set 6 Allele at each gene 4. A three-point testcross is made in corn, employing the genes B

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Bio 350 Summer 2022 Problem Set 6 Allele At Each Gene 4 A Three Point Testcross Is Made In Corn Employing The Genes B 1 (165.89 KiB) Viewed 35 times

Bio 350 Summer 2022 Problem Set 6 Allele at each gene 4. A three-point testcross is made in corn, employing the genes B (B = brown seeds, b = white seeds), P (P = green leaves, p = purple leaves), and V (V= virus-sensitive plants, v = virus-resistant plants). B, P, and V are the dominant wildtype alleles, b, p, and v are the recessive mutant alleles. F1 hybrids are created from a cross between B/B P/P VIV xb/b p/p v/v. After testcrossing the F1 to a strain homozygous recessive for all genes, the F2 progeny counts in the table opposite were found. B bB bB b b B P Р P P P P P P V B-P V P-V V V V V V V Progeny Name count 3210 3222 1024 1044 690 678 72 60 (a) Is the order of the genes correct as given? If not, which gene should be in the middle? (b) Calculate the recombination frequencies for: 3 (c) Draw a map of the 3 genes in map order that shows the genetic distances (in map units) between all 3 pairs of genes.