Can someone please help me solve this problem, I have postedthis question twice and prof, said it was still incorrect. Pleasecan someone help me get the right answer??
Drosophila has four pairs of chromosomes: the sex chromosomes(XX in the females; XY in the males) and three pairs of autosomes.You are studying a new mutant strain with blue eyes. You wish toknow if blue eye colour is a dominant mutation and on whichchromosome the blue eye locus can be found. When you cross apureâbreeding female blueâeyed fly with vestigial wings andspineless bristles to a male fly with wild type eye colour, wings,and bristles, all of the F1 progeny are completely wild type. An F1male is backcrossed to a triple mutant female, producing thefollowing progeny (remember that there is no crossing over inDrosophila males):
Wild type eyes, wings, and bristles: 72 females, 69 males
Wild type eyes and bristles, vestigial: 83 females, 77 males
Wild type wings, blue eyes, spineless: 60 females, 65 males
Blue eyes, spineless, vestigial: 62 females, 58 males
1- Is the mutation dominant or recessive?Explain.
2-Since you know that the locus for vestigial wings is onchromosome 2 and the locus for spineless bristles is on chromosome3, what chromosome carries the locus for blue eyes? Show your work,including the stepâbyâstep reasoning you used to arrive at youranswer.
3-When an F1 female is backcrossed to a triple mutant male, thefollowing 1,000 progeny are produced:
Wild type eyes, wings, and bristles: 90 females, 89 males
Wild type eyes and bristles, vestigial: 83 females, 98 males
Wild type eyes and wings, spineless: 37 females, 35 males
Wild type wings and bristles, blue eyes: 36 females, 34males
Wild type wings, blue eyes, spineless: 92 females, 88 males
Wild type eyes, spineless, vestigial: 34 females, 39 males
Wild type bristles, vestigial, blue eyes: 33 females, 37males
Blue eyes, spineless, vestigial: 90 females, 85 males
4-Calculate the map distance between blue eye and any linkedgenes from the above progeny. Show your work
Can someone please help me solve this problem, I have postedthis question twice and prof, said it was still incorrect. Pleasecan someone help me get the right answer??
Drosophila has four pairs of chromosomes: the sex chromosomes(XX in the females; XY in the males) and three pairs of autosomes.You are studying a new mutant strain with blue eyes. You wish toknow if blue eye colour is a dominant mutation and on whichchromosome the blue eye locus can be found. When you cross apureâbreeding female blueâeyed fly with vestigial wings andspineless bristles to a male fly with wild type eye colour, wings,and bristles, all of the F1 progeny are completely wild type. An F1male is backcrossed to a triple mutant female, producing thefollowing progeny (remember that there is no crossing over inDrosophila males):
Wild type eyes, wings, and bristles: 72 females, 69 males
Wild type eyes and bristles, vestigial: 83 females, 77 males
Wild type wings, blue eyes, spineless: 60 females, 65 males
Blue eyes, spineless, vestigial: 62 females, 58 males
1- Is the mutation dominant or recessive?Explain.
2-Since you know that the locus for vestigial wings is onchromosome 2 and the locus for spineless bristles is on chromosome3, what chromosome carries the locus for blue eyes? Show your work,including the stepâbyâstep reasoning you used to arrive at youranswer.
3-When an F1 female is backcrossed to a triple mutant male, thefollowing 1,000 progeny are produced:
Wild type eyes, wings, and bristles: 90 females, 89 males
Wild type eyes and bristles, vestigial: 83 females, 98 males
Wild type eyes and wings, spineless: 37 females, 35 males
Wild type wings and bristles, blue eyes: 36 females, 34males
Wild type wings, blue eyes, spineless: 92 females, 88 males
Wild type eyes, spineless, vestigial: 34 females, 39 males
Wild type bristles, vestigial, blue eyes: 33 females, 37males
Blue eyes, spineless, vestigial: 90 females, 85 males
4-Calculate the map distance between blue eye and any linkedgenes from the above progeny. Show your work
