Question

A plant breeder produced a purple flower by crossing a red parent with a blue parent. Use RR as the genotype for the red parent and BB for the blue parent. Complete the Punnett square to show the resulting genotypes and phenotypes of the offspring.

Gamete allele:R Gamete allele:R

Gamete allele:B Genotype:RB Genotype:RB
Phenotype:Purple Phenotype:Purple
Gamete allele:B Genotype:RB Genotype:RB
Phenotype:Purple Phenotype:Purple

Answer 1

This question is in accordance with the mendel law of independent assortment which stated that two alleles assort independently during gamete formation. Therefore, the resultant punnett square will show flower having the genotype of RB and purple color as its phenotype.  See Attachment for punnet square results.