BLG1501
Assignment 2 Semester 1 2026
Unique number:
Due Date: 20 April 2026
Detailed solutions, explanations, workings
and references.
+27 81 278 3372
, QUESTION 1
F1 Generation – First Cross (PP × pp)
Parents:
Purple (homozygous dominant) = PP
White (homozygous recessive)= pp
Gametes:
PP produces only P gametes.
pp produces only p gametes.
Punnett Square (F1 Generation):
P P
p Pp Pp
p Pp Pp
F1 Genotype = All offspring are Pp (heterozygous).
F1 Phenotype = All offspring have purple flowers (since P is dominant).
F2 Generation – Second Cross (Pp × Pp)
We now cross two heterozygous purple-flowered plants (Pp × Pp).
Punnett Square (F2 Generation):
P p
P PP Pp
p Pp pp
Genotypic Ratio (F2)
Varsity Cube 2026 +27 81 278 3372
Assignment 2 Semester 1 2026
Unique number:
Due Date: 20 April 2026
Detailed solutions, explanations, workings
and references.
+27 81 278 3372
, QUESTION 1
F1 Generation – First Cross (PP × pp)
Parents:
Purple (homozygous dominant) = PP
White (homozygous recessive)= pp
Gametes:
PP produces only P gametes.
pp produces only p gametes.
Punnett Square (F1 Generation):
P P
p Pp Pp
p Pp Pp
F1 Genotype = All offspring are Pp (heterozygous).
F1 Phenotype = All offspring have purple flowers (since P is dominant).
F2 Generation – Second Cross (Pp × Pp)
We now cross two heterozygous purple-flowered plants (Pp × Pp).
Punnett Square (F2 Generation):
P p
P PP Pp
p Pp pp
Genotypic Ratio (F2)
Varsity Cube 2026 +27 81 278 3372
