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.
Without doing any calculations, determine which of the following are the parental phenotypic classes. Choose 1, 2, 3 or 4.
Dark, oval, short; and Pale, round, tall.
Pale, oval, tall; and Dark, round, short.
Pale, oval, short; and Dark, round, tall.
Dark, oval, tall; and Pale, round, short.
Without doing any calculations, determine which of the following are the double crossover phenotypic classes. Choose 1, 2, 3 or 4.
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. Choose 1, 2, 3 or 4.
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