Answer:
1. C) The blue flowering plant is heterozygous for flower color.
2. genotype
Explanation:
1. To get 1:1 ratio for plant with blue flower and white flower, the recessive plant must be homozygous. We can get desired result when a heterozygous blue flower plant (Bb) is crossed with homozygous white flower (bb). It should be noted that B is the gene for blue and b is its allele for white colour.
2. The genotype is the combination of genes contained by an organisms. Genotype determines the features of the organisms.