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Incomplete Dominance - A Genetics Definition

By Regina Bailey, About.com

Pink Snapdragon

Pink Snapdragon

Rosendahl/Public Domain Image
Definition: Incomplete dominance is a form of intermediate inheritance in which heterozygous alleles are both expressed, resulting in a combined phenotype.

Related Terms: Allele, Genes, Heterozygous, Phenotype
Examples: In cross-pollination experiments between red and white snapdragon plants, the resulting offspring are pink.

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