Three genes are in this order: D ------- E ------- F Test crosses reveal 12% recombination frequency between D and E an

[answerhappygod]

Three genes are in this order:
D ------- E ------- F
Test crosses reveal 12% recombination frequency between D and Eand 17% recombination frequency between E and F.
(a) What is the expected distance between D and F?
(b) A test cross is done to asses the distance between D and F,and it comes to be 27 map units based on the recombinationfrequency between E and F. Is this number different than yourexpected distance, the answer you gave for (a)? And if so, what isthe most likely cause for this difference?
(c) Calculate the coefficient of interference based on theinformation above.
2) In Drosophila serrata, wild-type(elo+) is dominant over Elongin elo, andwild-type (mic+) is dominant over mic. Atest cross is done between an heterozygous fly elo+ mic+ /elo mic and a fly homozygous forboth elo and mic.
These are the results of the cross:
wild-type flies: 235mic mutants: 11elo mutants: 9mic and elo mutants: 245
Using a contingency table, test for independent assortment ofthese two loci and answer the following questions:
(a) What is the result of the chi-sq statistic?(b) How many degrees of freedom do you have on the testabove?(c) What is the P-value? Use the table of P-values from yourtextbook. Note that the P-value is not the same thing as thethreshold for significance. The only acceptable answers areeither P>0.05 or P<0.05.(d) Is the P-value significant? The only acceptable answersare Significant or NotSignificant.)(e) Do the results support the hypothesis that the loci areassorting independently?