Biology A-Level
base sequence
What base sequence means in Biology A-Level, as defined for AQA.
Definitions of base sequence
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 base sequence in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The order of bases in DNA, which carries information and which a gene is a length of.
The information carried lies in the sequence of bases along the strand.
Topics that use base sequence
- DNA, genes and chromosomes (AQA A-Level)
- Structure of DNA and RNA (AQA A-Level)
Related terms
- alleles
- chromatin
- circular organelle DNA
- condensation reaction
- crossing over
- degenerate code
- endosymbiotic theory
- evidence and acceptance
Using base sequence 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 Biology questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Biology A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge