Combined Science GCSE
DNA
What DNA means in Combined Science GCSE, as defined for AQA.
Definitions of DNA
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 DNA in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A polymer of nucleotides whose base sequence stores genetic information, with two strands pairing by complementary bases.
Molecule of inheritance that chromosomes are made of, along which genes are sections.
The chemical of which the genetic material in the nucleus of a cell is composed.
Topics that use DNA
- Chromosomes (AQA GCSE)
- DNA and the genome (AQA GCSE)
- Key ideas (AQA GCSE)
Related terms
- Chromosome
- Correlation and causation
- Gene
- Genome
- Action at a distance
- Activation energy
- Active site
- Adaptation
Using DNA 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.
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