Incomplete dominance is a genetic phenomenon where neither allele in a pair completely masks the other. Instead, the traits blend together, resulting in a third phenotype that is a mix of the two parental traits. For example, when a red flower (R) is crossed with a white flower (W), the offspring may produce pink flowers (RW), showcasing this blending effect. This concept differs from complete dominance, where one allele completely overshadows the other. In incomplete dominance, the heterozygous condition leads to a unique expression, highlighting the importance of both alleles in determining the organism's appearance.