A population of plants has two alleles for a specific gene: R (red flowers) and r (white flowers). The frequency of the R allele is 0.6. What is the expected frequency of the rr genotype?

Core Concept

To calculate the frequency of the rr genotype, we use the Hardy-Weinberg principle. The frequency of the rr genotype can be found using the formula p^2, where p is the frequency of the R allele. In this case, p = 0.6, so the frequency of the rr genotype is (0.6)^2 = 0.36.