Question

Answer the following question.
British geneticist R.C. Punnett developed a graphical representation of a genetic cross called “Punnett Square”. Mention the possible result this representation predicts of the genetic cross carried.

Answer 1

Punnett Square for Mendelian monohybrid cross between pure line tall and the dwarf planet will appear as follows: 

Parent Generation
TT  x  tt
↓

F₁ Generation                                            Tt

↓
Tt  x  Tt
(Selfing)

F₂ Generation

	T	t
T	TT	Tt
t	Tt	tt

The result of F₂ generation phenotypic ratio of a monohybrid cross is 3: 1.