When a pure tall plant is crossed with a pure dwarf plant and the F1 is selfed, what is the ratio of pure tall to dwarf plants in the F2 generation?
Correct answer B. 1:1
Explanation
The F2 genotypes are 1 TT : 2 Tt : 1 tt, so true-breeding tall (TT) and dwarf (tt) plants occur in equal numbers, giving a 1:1 ratio.
Answer checked How we write and check questions
Discussion