BLG1501 Assignment 2 2026 Semester 1 (641006) Due 20 April 2026

BLG1501
Assignment 2 Semester 1
Unique No: 641006
Due 20 April 2026

, QUESTION 1

A purple flower (P) is dominant, and the white flower (p) is recessive. Use the Punnett
square to predict the results of this monohybrid cross between a purple homozygote
flower and a white homozygote flower and state the phenotypic and genotypic ratios of
the F2 generation. [20]

Parental Generation (P generation):

• Purple homozygote: PP
• White homozygote: pp

Punnett square:


P P

p Pp Pp

p Pp Pp


F1 Generation:

• All offspring are heterozygous (Pp)
• Phenotype: All purple (dominant trait expressed)
• Genotype ratio: 4 Pp : 0 PP : 0 pp

F1 Cross (Pp × Pp) to produce F2 generation:


P p

P PP Pp

p Pp pp