Question

Plant A and Plant B are heterozygous for a gene that expresses their tall trait (Tt). Upon crossing, what is expected in the offspring, assuming random chromosome segregation?

Answer 1

There is a 75% chance the offspring will express the tall trait (TT or Tt) and a 25% chance the offspring will express the short trait (tt).

Answer 2

The Plant A is heterozygous for the gene expressed their tall trait (Tt) and Plant B is also heterozygous for the same trait.

( Plant A ) Tt X Tt ( Plant B) = TT Tt Tt tt

The products are 75 per cent tall by phenotype and 25 per cent dwarf by phenotype.

If the cross between the two heterozygous gene is done which shows the trait as tall, and then the offspring will have 75% as tall plant and 25 % as dwarf plant.