Final answer:
In incomplete dominance, a heterozygous self cross results in both phenotypic and genotypic ratios of 1:2:1, manifesting as red, pink, and white flowers in the given example.
Step-by-step explanation:
In incomplete dominance, both the phenotypic and genotypic ratio is 1:2:1 for a heterozygous self cross. As an example, consider a scenario in which the allele for red flowers is incompletely dominant over the allele for white flowers. When a heterozygous plant (CRCW) is self-fertilized, the possible genotypes among the offspring are CRCR, CRCW, and CWCW. Here, the genotype representing red flowers is CRCR, pink flowers (the intermediate phenotype) can be observed in the CRCW genotype, and white flowers correspond to the CWCW genotype. The pattern of inheritance in incomplete dominance generates both genotypic and phenotypic ratios of 1:2:1, meaning there will be one red, two pink, and one white flowering plant for every four plants observed.
In biology, when a heterozygous individual undergoes self-crossing, both the phenotypic and genotypic ratio can be determined. In the case of incomplete dominance, where the expression of two contrasting alleles results in an intermediate phenotype, the genotypic ratio will be 1 CRCR:2 CRCW:1 CWCW, while the phenotypic ratio will be 1:2:1 (red:pink:white).