Final answer:
Incomplete dominance is the scenario where the heterozygote has a phenotype that is intermediate to the phenotypes of the homozygotes, and it is exemplified by the pink flowers of snapdragons, resulting from a cross between red and white flowered plants.
Step-by-step explanation:
Incomplete Dominance
The type of dominance that occurs when the heterozygote has a phenotype that is intermediate to the phenotypes of the two homozygotes is known as incomplete dominance. This pattern of inheritance is such that the heterozygous genotype expresses a phenotype that is a blend between the dominant and the recessive phenotypes. An example of incomplete dominance is seen in snapdragons, where a cross between a red-flowered (CRCR) and a white-flowered (CWCW) plant results in the F1 generation of pink-flowered snapdragons (CRCW). The pink flower color is intermediate between the red and white flowers of the parents. When the F1 generation is crossed among itself, it can produce red, pink, and white flowers following a phenotypic ratio of 1:2:1.
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