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Codominance — Edexcel GCSE Biology Definition | GradeGen

Home
Biology
Key terms
Codominance

GCSE Biology · key term

Codominance

Definition

The inheritance pattern in which both alleles in a heterozygous genotype are fully expressed in the phenotype.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Biology · 1BI0

Specification 3.17B · Paper 1

Revise: ABO Blood Groups

Edexcel Biology past papers

Related key terms

Allele
Antigen
Genotype
Multiple alleles
Phenotype

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