Wright BIO 2110 - Rec7_two-factor crosses_recomb freq (3 pages)

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Rec7_two-factor crosses_recomb freq



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Rec7_two-factor crosses_recomb freq

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Pages:
3
School:
Wright State University
Course:
Bio 2110 - Principles of Molecular and Classical Genetics

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BIO 2110 Genetics Recitation 6 Name Group Members 1 In Eleutheran aquatic swine variation in ear shape results from allelic variation in a single gene The same is true for variation in nose shape i determine the frequency of recombination between these two genes P0 pointed ears pointed nose x round ears blunt nose F1 pointed ears pointed nose x F2 pointed ears pointed nose pointed ears blunt nose round ears pointed nose round ears blunt nose 919 273 285 123 pointed ears pointed nose 2 In Eleutheran aquatic swine variation in ear shape results from allelic variation in a single gene The same is true for variation in nose shape i Determine the frequency of recombination between these two genes if you reject independent assortment ii Is the recombination frequency determined from these data the same as the recombination frequency determined in question 1 Was this expected Why or why not iii Why is the pattern of phenotypic segregation different for this cross than for the cross shown in question 1 P0 pointed ears blunt nose x round ears pointed nose F1 pointed ears pointed nose x F2 pointed ears pointed nose pointed ears blunt nose round ears pointed nose round ears blunt nose 881 315 323 81 pointed ears pointed nose potentially useless information probability df 0 90 0 50 0 20 0 05 0 01 0 001 1 0 02 0 46 1 64 3 84 6 64 10 83 2 0 21 1 39 3 22 5 99 9 21 13 82 3 0 58 2 37 4 64 7 82 11 35 16 27 4 1 06 3 36 5 99 9 49 13 28 18 47 5 1 61 4 35 7 29 11 07 15 09 20 52 df n 1 p2 parental gamete frequency 1 p T prob12 prob1 x prob2 recombinant gamete frequency p



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