# Explain how scientists could use genetic engineering to produce human insulin in bacteria.

> Eduqas GCSE Biology — 7.4 Selective breeding and gene technology · Explain · 4 marks

> People with type 1 diabetes need insulin. Scientists can use genetic engineering to insert the human insulin gene into bacteria, which then produce insulin that can be harvested for medical use.

## Mark scheme (4 marks)

1. The human insulin gene is cut/removed from human DNA
2. The gene is inserted into a vector / bacterial plasmid
3. The plasmid / vector is introduced into the bacterium
4. The bacteria multiply / reproduce and produce human insulin

## Key terms

- [genetic engineering](https://www.gradenine.co.uk/glossary/genetic-engineering)

## 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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Source: [GradeNine](https://www.gradenine.co.uk/q/explain-how-scientists-could-use-genetic-e8433df0) · Published by Druglandscape Ltd.