The phenotype of a plant with the genotype RW, where R and W represent alleles for flower color showing incomplete dominance, is pink flowers. This is because neither allele is completely dominant; instead, the heterozygous genotype RW produces an intermediate phenotype that blends the traits of the two alleles (red and white), resulting in pink flowers

. In summary:

• RR genotype produces red flowers.
• WW genotype produces white flowers.
• RW genotype produces pink flowers (the intermediate phenotype due to incomplete dominance).