Mutation
What Mutation means in Biology A-Level, as defined for AQA, OCR, Pearson Edexcel.
Definitions of Mutation
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Reference: AQA
A change to the base sequence, usually arising during DNA replication, occurring at random and independently of whether the change would be useful.
Creates new alleles and so provides the genetic variation on which selection acts.
A random change in the sequence of DNA bases.
A change in the sequence of bases in DNA.
Topics that use Mutation
- Genetic diversity and adaptation (AQA A-Level)
- Patterns of inheritance (OCR A-Level)
- Biological Molecules (Pearson Edexcel A-Level)
- Modern Genetics (Pearson Edexcel A-Level)
Related terms
- Phenotype
- allele
- Gene
- Genotype
- Osmosis
- advantage depends on environment
- Allele frequencies
- allele passed to offspring
Using Mutation in the exam
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