Biology Glossary

DNA

In DNA and the genome, DNA means the specific Unit 4.6 idea used to answer this objective: students must explain that DNA is contained in structures called chromosomes. Keep the term curriculum-specific by applying this boundary: DNA is the molecule; a gene is a functional section of that molecule. Do not use DNA as a vague inheritance word; link it to Reproduction and explain the exact role it plays in AQA GCSE Biology.