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In Mendel's monohybrid cross between tall (TT) and dwarf (tt) pea plants, what is the phenotypic ratio observed in the F2 generation?
A3 tall : 1 dwarf
B1 tall : 1 dwarf
C9 tall : 1 dwarf
DAll tall plants
Answer & Solution
Correct answer: A. 3 tall : 1 dwarf
F2 segregation gives the classical 3:1 phenotypic ratio (1 TT : 2 Tt : 1 tt, with TT and Tt both expressing the dominant tall phenotype).
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