C. Two plants, both heterozygous for the gene that controls flower color are crossed. What percentage of their offspring will have purple flowers? __ White Flowers? __

## Step 1The problem involves the principles of genetics, specifically the concept of incomplete dominance. Incomplete dominance is a form of inheritance where the phenotype of the heterozygous genotype is an intermediate phenotype between the two homozygous phenotypes.## Step 2In this problem, we are given that both plants are heterozygous for the gene that controls flower color. This means that each plant has two different alleles for the flower color gene, one for purple flowers and one for white flowers.## Step 3When these plants are crossed, the possible combinations of alleles in the offspring are: purple-purple, purple-white, white-purple, and white-white. ## Step 4The purple-purple and purple-white combinations will result in purple flowers, while the white-purple and white-white combinations will result in white flowers.## Step 5The ratio of these combinations is 1:2:1, which means that 1/4 of the offspring will have purple flowers, 1/2 will have purple-white flowers (which will also have purple flowers), and 1/4 will have white flowers.## Step 6Therefore, the percentage of offspring with purple flowers is 75% (1/4 + 1/2), and the percentage of offspring with white flowers is 25% (1/4).