Question

If you are conducting a monohybrid cross of tall (dominant) and dwarf (recessive) plants, the recessive trait in the F1 plants _____.

1. is always masked
2. appears in a ratio of 2:1
3. appears in a ratio of 3:1
4. appears in a ratio of 2:2

Answer 1

The recessive trait in the F1 plants appears in a ratio of 3:1.

Answer 2

The correct answer would be 1. is always masked.

When homozygous or pure bred tall plant (TT) is crossed with homozygous dwarf or pure bred dwarf plant (tt), the offspring produced will always be heterozygus tall (Tt).

Thus, the recessive trait (t) dwarf is always masked by the dominant trait (T) tallness in F₁ generation.