Answer:
The correct answer would be 3:1
Let us take an example of TT and tt as purebreds.
T is a dominant trait which codes for tallness and t is a recessive trait which codes for a dwarf trait.
The F₁ generation would be Tt, that is, heterozygous dominant.
The F₂ generation would produce offspring with three possible types of genotypes TT, Tt, and tt in ratio 1:2:1.
Thus, the phenotype ratio would be 3 (tall): 1 (dwarf).
