1. The F, from a cross of AB/AB x ab/ab is test-crossed, resulting in the following...

  

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1. The F, from a cross of AB/AB x ab/ab is test-crossed, resulting in the following phenotypic ratios: AB 308 190 292 210 What is the frequency of recombination between genes a and b? Ab ab aB 2. Use the following two-point recombination data to map the genes, and show the order and distances between adjacent genes. Gene B C D E A 50 15 38 8 B 50 13 50 с 50 7 D 45 3. The allele b gives Drosophila flies a black body, while b+ gives brown, the wildtype color. The allele wx of another gene gives waxy wings, while wx+ gives nonwaxy wings. The allele cn of a third gene gives cinnabar eyes while en+ gives the wildtype red eyes. A female heterozygous for these three genes is testcrossed, and 1000 progeny are phenotyped: 5 6 69 67 382 379 48 wildtype black, waxy, cinnabar waxy, cinnabar black cinnabar black, waxy waxy black, cinnabar 44 Determine the gene order and calculate the map distances and interference. 1. The F, from a cross of AB/AB x ab/ab is test-crossed, resulting in the following phenotypic ratios: AB 308 190 292 210 What is the frequency of recombination between genes a and b? Ab ab aB 2. Use the following two-point recombination data to map the genes, and show the order and distances between adjacent genes. Gene B C D E A 50 15 38 8 B 50 13 50 с 50 7 D 45 3. The allele b gives Drosophila flies a black body, while b+ gives brown, the wildtype color. The allele wx of another gene gives waxy wings, while wx+ gives nonwaxy wings. The allele cn of a third gene gives cinnabar eyes while en+ gives the wildtype red eyes. A female heterozygous for these three genes is testcrossed, and 1000 progeny are phenotyped: 5 6 69 67 382 379 48 wildtype black, waxy, cinnabar waxy, cinnabar black cinnabar black, waxy waxy black, cinnabar 44 Determine the gene order and calculate the map distances and interference. 1. The F, from a cross of AB/AB x ab/ab is test-crossed, resulting in the following phenotypic ratios: AB 308 190 292 210 What is the frequency of recombination between genes a and b? Ab ab aB 2. Use the following two-point recombination data to map the genes, and show the order and distances between adjacent genes. Gene B C D E A 50 15 38 8 B 50 13 50 с 50 7 D 45 3. The allele b gives Drosophila flies a black body, while b+ gives brown, the wildtype color. The allele wx of another gene gives waxy wings, while wx+ gives nonwaxy wings. The allele cn of a third gene gives cinnabar eyes while en+ gives the wildtype red eyes. A female heterozygous for these three genes is testcrossed, and 1000 progeny are phenotyped: 5 6 69 67 382 379 48 wildtype black, waxy, cinnabar waxy, cinnabar black cinnabar black, waxy waxy black, cinnabar 44 Determine the gene order and calculate the map distances and interference. 1. The F, from a cross of AB/AB x ab/ab is test-crossed, resulting in the following phenotypic ratios: AB 308 190 292 210 What is the frequency of recombination between genes a and b? Ab ab aB 2. Use the following two-point recombination data to map the genes, and show the order and distances between adjacent genes. Gene B C D E A 50 15 38 8 B 50 13 50 с 50 7 D 45 3. The allele b gives Drosophila flies a black body, while b+ gives brown, the wildtype color. The allele wx of another gene gives waxy wings, while wx+ gives nonwaxy wings. The allele cn of a third gene gives cinnabar eyes while en+ gives the wildtype red eyes. A female heterozygous for these three genes is testcrossed, and 1000 progeny are phenotyped: 5 6 69 67 382 379 48 wildtype black, waxy, cinnabar waxy, cinnabar black cinnabar black, waxy waxy black, cinnabar 44 Determine the gene order and calculate the map distances and interference.

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1 The first step is to determine the gametes produced by the parent with genotype ABA B This individual can produce two types of gametes AB and A B Similarly the parent with genotype abab produces two ... View the full answer