BLG1501 Assignment 2 Semester 1 2026 (641006) - DUE 20 April 2026; 100% CORRECT AND TRUSTED SOLUTIONS

,BLG1501 Assignment 2 Semester 1 2026 (641006) - DUE 20 April 2026;
100% CORRECT AND TRUSTED SOLUTIONS


QUESTION 1: MONOHYBRID CROSS – FLOWER COLOUR



1. Given Information

 Purple flower (P) is dominant
 White flower (p) is recessive
 Cross is between:
o Purple homozygous flower → PP
o White homozygous flower → pp


This is a monohybrid cross because only one characteristic (flower colour) is
being studied.



2. Parental Generation (P₁)

2.1 Genotypes of Parents

 Purple homozygote = PP
 White homozygote = pp

2.2 Gametes Produced

 Parent with genotype PP produces only P gametes
 Parent with genotype pp produces only p gametes



3. Punnett Square for the P₁ Cross (PP × pp)

, P P
p Pp Pp
p Pp Pp


4. F₁ Generation Results

4.1 Genotypic Outcome (F₁)

 All offspring have genotype Pp

4.2 Phenotypic Outcome (F₁)

 All offspring are purple flowers, because P is dominant over p

4.3 Summary of F₁ Generation

 Genotypic ratio: 100% Pp
 Phenotypic ratio: 100% purple flowers



5. Formation of the F₂ Generation

To obtain the F₂ generation, the F₁ offspring (Pp × Pp) are crossed with each
other.



6. Punnett Square for the F₂ Cross (Pp × Pp)

6.1 Gametes Produced by Each Parent

Each Pp parent produces:

 P
 p

6.2 Punnett Square