Question

Give schematic representation of monohybrid crossing snapdragon showing incomplete dominance.

Answer 1

Snapdragon shows incomplete dominance. In Snapdragon, the red colour of the flower is dominant (represented by allele 'R') while white (represented by allele 'r') is recessive. Heterozygous genotype results in the pink colour of the flower.

A cross between RR × rr results in F${}_1$ with pink flowers (Rr).

Punnet's square for F${}_2$ can be represented as -

Gametes	R	r
R	RR (Red)	Rr (Pink)
r	Rr (Pink)	rr (white)

Here genotype, as well as phenotype ratio is 1:2:1.