Compute the recombination fraction | Homework Help
| Phenotype | Number |
| Pale, round, tall | 648 |
| Pale, oval, tall | 64 |
| Pale, round, short | 10 |
| Pale, oval, short | 102 |
| Dark, oval, tall | 6 |
| Dark, oval, short | 618 |
| Dark, round, short | 84 |
| Dark, round, tall | 98 |
| 1630 |
A wild-type trihybrid soybean plant is crossed to a pure-breeding soybean plant with the recessive phenotypes pale leaf l, oval seed (r), and short height (t). The corresponding dominant wild-type alleles result in dark leaves (L), round seeds (R), and tall height (T). The results of the three-point test cross are shown in the table.
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Part A
What is the genotype of the wild-type trihybrid soybean plant? Use L, R, and T to represent dominant alleles and l, r, and t for recessive alleles.
LrT / lRt
Lrt / lRT
LRT / lrt
LRt / lrT
Part B
Place the alleles in their correct gene order.
Place the alleles in their correct gene order.
L-T-R
L-R-T
T-L-R
Part C
Calculate the recombination fraction between T and L pair of genes.
Enter your answer to three decimal places (example 0.251).
Part D
Calculate the recombination fraction between T and R pair of genes.
Enter your answer to three decimal places (example 0.201).
Part E
Calculate the interference value for these data.
Enter your answer to three decimal places (example 0.201).
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