6. In a diploid frog species (Froggi wentacourtingus), three linked autosomal genes (A, B, C) control skin texture, tong

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6 In A Diploid Frog Species Froggi Wentacourtingus Three Linked Autosomal Genes A B C Control Skin Texture Tong 1 (48.76 KiB) Viewed 112 times

6. In a diploid frog species (Froggi wentacourtingus), three linked autosomal genes (A, B, C) control skin texture, tongue shape and mating behavior, with Rugged skin (4) dominant to warty (a), Single tongue (8) dominant to forked (b), and Princely behavior (C) domfnant to rude (c). The dominant traits are wild type for these genes. To map the genes, an F1 trihybrid (which was phenotypically Rugged, Single, and Princely) was testcrossed, and the following F: progeny were obtained (table below). Fill out the rest of the table. Phenotype Genotype a-b b-c a-c 864 ab TabClabe P 886 C ABc/abc P P 50 b Abc/abc ac la Bc/abc a aBC/abc 50 be Ab c/abc 46 WT ABC/abc abc labc/abc Gene distance in cM/mu 12.35 7-9 a) What were the phenotypes of the two parental strains? ab and c b) What is the gene order? AC B c) Coefficient of coincidence d) Interference e) Draw the map for these three genes, and put the distances between them in m.u./cM. A 7.9 CM - € - 5.15 CM- B 12.35 46 72 75 في 4 73 78 P P 5.15 P