Combined Science GCSE
allele
What allele means in Combined Science GCSE, as defined for AQA.
Definitions of allele
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain allele in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
One of the different versions of a gene that can occupy the same locus on a chromosome.
A version of a gene whose base sequence determines which polypeptide is made.
A different version of the same gene, for example T and t for plant height.
A different version of the same gene, which may be dominant or recessive.
Topics that use allele
- Genetic inheritance (AQA GCSE)
Related terms
- Alleles
- carriers
- Chromosome
- Continuous variation
- diploid
- Direct proportion
- Dominant allele
- Environmental influence on characteristics
Using allele in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Combined Science questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Combined Science GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge