Biology GCSE
Recessive allele
What Recessive allele means in Biology GCSE, as defined for AQA.
Definitions of Recessive allele
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Reference: AQA
An allele that is not expressed when a dominant allele is present, as with fur colour in mice where the dominant allele is expressed over it.
An allele whose effect is expressed only when two copies are present, so no dominant allele is present.
An allele that causes a disorder only when two copies are present.
Topics that use Recessive allele
- Genetic inheritance (AQA GCSE)
- Inherited disorders (AQA GCSE)
Related terms
Using Recessive allele in the exam
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