Biology / Unit 5 Bio 1039 short lesson, about 20 seconds
Incomplete Dominance
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The idea
Incomplete dominance produces a heterozygote phenotype intermediate between its two homozygous parent phenotypes, rather than matching one parent's trait exactly.
In practice
Crossing red-flowered and white-flowered snapdragons produces pink-flowered heterozygotes, intermediate between the two parent colors.
Where people slip
An intermediate phenotype is not blending inheritance revived — the alleles stay distinct and separate normally in the next generation.
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