CAIE IGCSE Biology 17.1.3 Defining an Allele
Practise defining an allele as an alternative form of a gene and recognising the term in genetic contexts.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- define an allele as an alternative form or version of a gene
- recognise that two alleles concern the same gene rather than two unrelated genes
- distinguish an allele from a chromosome, protein or length-of-DNA definition
17.1.3—Allele as an alternative form question 1
[Maximum number: 1]
Allele frequency in a population can be changed by natural selection and artificial selection.
State the meaning of the term allele.
either
an alternative form of a gene ;
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