N
nisyaoran
Guest
y p cv
+ + + 146
+ + - 11
+ - - 14
+ - + 60
- + + 13
- + - 43
- - + 14
- - - 134
1) Begin the analysis of the results of the tri-hybrid mapping cross by examining the mutants two at a time (ignoring the third mutant on each occasion). Calculate the map distance between each of the pairs loci
2) Now the order is established, a better estimate of the longest map distance can be obtained by taking account of the double crossovers that have occurred within the two internal sub-regions. Recalculate this distance, explaining the working.
3) Test whether the results show interference between crossovers. This can be done by calculating the coefficient of coincidence, and the amount of interference. Explain the working and interpret the results.
+ + + 146
+ + - 11
+ - - 14
+ - + 60
- + + 13
- + - 43
- - + 14
- - - 134
1) Begin the analysis of the results of the tri-hybrid mapping cross by examining the mutants two at a time (ignoring the third mutant on each occasion). Calculate the map distance between each of the pairs loci
2) Now the order is established, a better estimate of the longest map distance can be obtained by taking account of the double crossovers that have occurred within the two internal sub-regions. Recalculate this distance, explaining the working.
3) Test whether the results show interference between crossovers. This can be done by calculating the coefficient of coincidence, and the amount of interference. Explain the working and interpret the results.