4. Genetic Mapping and Linkage
Trihybrid Cross
Problem 23b
Textbook Question
Textbook QuestionA 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 results of the three-point test cross are shown below. Traits not listed are wild type.
Phenotype Number
Pale 648
Pale, oval 64
Pale, short 10
Pale, oval, short 102
Oval 6
Oval, short 618
Short 84
Wild type 98
1630
Calculate the recombination frequencies between the adjacent genes.
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