In a pea plant, the trait of flowers bearing purple colour (PP) is dominant over white colour (pp). Explain the inheritance pattern of F1 and F2 generations with the help of a cross following the rules of inheritance of traits. State the visible characters of F1 and F2
progenies.
[3marker]
Pls explain each step
Answers
Answer:
Explanation:
Dominant Trait: Purple Flower(PP) ; Recessive Trait: White Flower(pp)
Phenotype: Purple X White
Genotype: PP X pp
Alleles: P p
↓
Genotype
F₁ progeny: Pp Pp
Phenotype of
F₁ progeny: Purple Purple
Alleles of F₁ : P p P p
↓
Genotype of
F₂ progeny: PP Pp Pp pp
Phenotype of
F₂ progeny: Purple : Purple : Purple : White
Punnet square:
P p
P PP Pp
p Pp pp
Phenotypic Ratio: Purple : White :: 3 : 1
Genotypic ratio: PP : Pp : pp :: 1 : 2 : 1
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