Question

What will be the percentage of heterozygous tall pea plants in F2 generation obtained by crossing heterozygous
tall F1 plants​

Answer 1

Answer:

50% heterozygous tall pea plants would be obtained in F2 generation when tall heterozygous pea plants are selfed.

Answer 2

Answer:

50% heterozygous tall pea plants would be obtained in F₂ generation by crossing heterozygous tall F₁ plants.

Explanation:

As given,

crossing heterozygous tall F₁ plants mean selfing or a self-cross is made.

for F₁ generation,

parent P →  heterozygous tall plant  × heterozygous tall plant

                                   Tt                      ×         Tt

gametes →             T,  t                                  T,  t      

F₂ generation →   TT,  Tt  ,      tT ,  tt

• TT - homozygous tall

• tt - homozygous dwarf
• Tt- heterozygous tall
• Tt - heterozygous tall

genotypic ratio - 1:2:1

hence the percentage of heterozygous tall pea plants in F₂ will be 50%.