Question

In a flowering plant, a cross is made between a homozygous dominant tall plant (TT) and a homozygous recessive dwarf plant (tt). What is the phenotypic ratio of the F1 generation?

• A. 1 Tall : 1 Dwarf
• B. 3 Tall : 1 Dwarf
• C. All Tall
• D. All Dwarf

Hint:

In a monohybrid cross between two homozygous parents (one dominant, one recessive), the F1 generation will always be heterozygous and express the dominant trait. The phenotypic variation appears in the F2 generation after self-crossing.