# Explain why the sequence of bases in a DNA molecule is important for a living organism.

> Eduqas GCSE Biology — 2.3.1 DNA structure · Explain · 4 marks

## Mark scheme (4 marks)

1. The sequence of bases forms a code / carries genetic information
2. The base sequence codes for the order of amino acids in a protein
3. This determines which protein / enzyme is made
4. Proteins / enzymes control the characteristics / chemical reactions of an organism

## Related

- [Revision notes for Eduqas GCSE Biology](https://www.gradenine.co.uk/learn)
- [How to answer "Explain" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
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