1. Parental Genotypes:
* Parent 1: BB (homozygous blue)
* Parent 2: bb (homozygous white)
2. Punnett Square:
To visualize the possible combinations, we'll use a Punnett square:
```
B B
b Bb Bb
b Bb Bb
```
3. Genotypes of Offspring:
* All offspring will be Bb. This means they are heterozygous for flower color.
4. Phenotypes of Offspring:
* All offspring will have blue flowers. This is because blue is the dominant allele, and even with one copy of the blue allele (B), the flower will be blue.
Summary:
When a homozygous blue flower (BB) is crossed with a homozygous white flower (bb), all offspring will have the genotype Bb and the phenotype of blue flowers.