When a tall pea plant is crossed with the dwarf pea plant .What will be the genotypic ratio of F2 generation after the selfing of F1 plants?

1:2:1

The correct answer is Option (2)- 1:2:1

When a tall pea plant (dominant trait, T) is crossed with a dwarf pea plant (recessive trait, t), the F1 generation will be heterozygous (Tt) and all tall, assuming complete dominance.

When the F1 plants (Tt) are self-pollinated, the F2 generation will exhibit the following genotypic ratio:

• TT (homozygous dominant): 1
• Tt (heterozygous): 2
• tt (homozygous recessive): 1

Thus, the genotypic ratio of the F2 generation is: 1:2:1

   A monohybrid cross conducted by Mendel between true breeding tall plants and true breeding dwarf plants.