Tom, a wild, male turkey (Meleagrisa gallopavo, 2N=80),had a very big night: he jumped the fence to the farm andsuccessfully mated with the entire flock of female, domesticturkeys. Tom had big wattles (w+), darkfeathers (d+) and green feet (g+). Thefemales were true-breeding for small wattles (w), white feathers(d) and yellow feet (g). Alleles are in parentheses and the â+âindicates the dominant allele. The three loci are notpart of a sex chromosome but they could be part of the sameautosome. No interactions among the loci and 100 %penetrance. The result of Tomâs big night, manychildren, is summarized in the table:
Class #
Phenotypic Class of Children
Number of children
1
Big, dark, green
122
2
Big, dark, yellow
27
3
Big, white, green
33
4
Big, white, yellow
6
5
Small, dark, green
3
6
Small, dark, yellow
22
7
Small, white, green
28
8
Small, white, yellow
138
Total
???
____________________________________: What are the genotypes ofthe likely parental types of gametes produced by Tom, the male?
____________: What locus is in the middle on the genetic map forthese loci?
c. ____ & _____: these âClass #sâ are the reciprocalproducts when only a single crossover occurs and it occurs betweenthe wattle locus and the feather locus in Tom.
d. ______: Calculate the recombinationfrequency between the wattle locus and the foot locus. Showyour calculation here:
e. ______: Calculate the recombinationfrequency between the feather locus and the foot locus.Show your calculation here:
f. _____: What is the expected number of double crossovers?Show your calculation here:
g. ________: What is the estimate of interference for thesedata?
Tom, a wild, male turkey (Meleagrisa gallopavo, 2N=80),had a very big night: he jumped the fence to the farm andsuccessfully mated with the entire flock of female, domesticturkeys. Tom had big wattles (w+), darkfeathers (d+) and green feet (g+). Thefemales were true-breeding for small wattles (w), white feathers(d) and yellow feet (g). Alleles are in parentheses and the â+âindicates the dominant allele. The three loci are notpart of a sex chromosome but they could be part of the sameautosome. No interactions among the loci and 100 %penetrance. The result of Tomâs big night, manychildren, is summarized in the table:
Class # | Phenotypic Class of Children | Number of children |
1 | Big, dark, green | 122 |
2 | Big, dark, yellow | 27 |
3 | Big, white, green | 33 |
4 | Big, white, yellow | 6 |
5 | Small, dark, green | 3 |
6 | Small, dark, yellow | 22 |
7 | Small, white, green | 28 |
8 | Small, white, yellow | 138 |
Total | ??? |
____________________________________: What are the genotypes ofthe likely parental types of gametes produced by Tom, the male?
____________: What locus is in the middle on the genetic map forthese loci?
c. ____ & _____: these âClass #sâ are the reciprocalproducts when only a single crossover occurs and it occurs betweenthe wattle locus and the feather locus in Tom.
d. ______: Calculate the recombinationfrequency between the wattle locus and the foot locus. Showyour calculation here:
e. ______: Calculate the recombinationfrequency between the feather locus and the foot locus.Show your calculation here:
f. _____: What is the expected number of double crossovers?Show your calculation here:
g. ________: What is the estimate of interference for thesedata?
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