Question

Which of the following represents tall plants and which represents short plants (or dwart plants)?
(a) Tt (b) tt (c) TT
Give reason for your (The symbols have their usual meaning).

Answer 1

When we consider T as the dominant trait and t as a recessive trait, TT and Tt represent tall plants and tt represent short plants.

In TT, both the alleles are dominant.

In Tt, one allele is dominant and one allele is recessive. So, the dominant allele is expressed.

In tt, both alleles are recessive so the plant is short.