A homozygous inflated pod shape variety of pea plant (I) is crossed with a constricted variety of pea plant (i) Answer the question that follows :
Give the phenotypic ratio and the genotype ratio of the offspring of the F2 generation when the two hybrids of the F1 generation are crossed.

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Solution

Dominant trait- Inflated pod shape P
Recessive trait- Constricted pod shape p
P PP x pp
P P p p (gametes produced)

F1 Pp x Pp (self-fertilization)
P p P p (gametes produced )

F2 P p
P PP Pp
p Pp pp

The phenotypic ratio for F2 is 3:1
where 3 is individuals showing the dominant trait and 1 is an individual showing recessive trait.
The genotypic ratio for F2 is 1:2:1
where 1 is the homozygous dominant individual, 2 is heterozygous dominant individual and 1 is a homozygous recessive individual.

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A homozygous inflated pod shape variety of pea plant (I) is crossed with a constricted variety of pea plant (i) Answer the question that follows :Give the phenotypic ratio and the genotype ratio of the offspring of the F2 generation when the two hybrids of the F1 generation are crossed.

A homozygous inflated pod shape variety of pea plant (I) is crossed with a constricted variety of pea plant (i) Answer the question that follows :
Give the phenotypic ratio and the genotype ratio of the offspring of the F2 generation when the two hybrids of the F1 generation are crossed.