Subject:
BiologyAuthor:
abramclaytonCreated:
1 year agoAnswer:
Human insulin is extracted from pancreas cells and an insulin-producing gene is located.
Explanation:
1. A plasmid DNA is extracted from a bacterium and cut with restriction enzyme, forming plasmid vector.
2. Insert human insulin-producing gene into the bacterial plasmid vector to form the recombinant DNA of human insulin-producing gene.
3. Introduce this recombinant DNA into a bacterial cell to form the recombinant bacterium.
4. The recombinant bacteria multiply in a fermentation tank and produce human insulin.
5.Insulin is extracted, purified and bottled. It is then ready to be injected into diabetic patients.
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