Biology A-Level
base analogues
What base analogues means in Biology A-Level, as defined for AQA.
Definition of base analogues
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Reference: AQA
Chemicals like 5-bromouracil that resemble normal bases and are incorporated during replication, but pair incorrectly to cause substitutions.
Topics that use base analogues
- Alteration of the sequence of bases in DNA can alter the (AQA A-Level)
Related terms
- amino acid sequence
- codons and anticodons
- DNA replication errors
- downstream codons
- frameshift
- premature stop codon
- R group interactions
- substitution
Using base analogues in the exam
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