Biology A-Level
addition and deletion
What addition and deletion means in Biology A-Level, as defined for AQA.
Definition of addition and deletion
Check what you remember
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Reference: AQA
Adding or deleting a base, or any number of bases not a multiple of three, shifts the reading frame.
Topics that use addition and deletion
- Alteration of the sequence of bases in DNA can alter the (AQA A-Level)
Related terms
- amino acid sequence
- base analogues
- codons and anticodons
- DNA replication errors
- downstream codons
- frameshift
- premature stop codon
- R group interactions
Using addition and deletion in the exam
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