Insulin is produced by genetically engineered bacteria. Which of the following describes the process?
Answer and explanation
Correct answer: D. The human insulin gene is put into bacteria
- Step 1: The gene is cut from human DNA.
- Step 2: It is placed in a bacterial plasmid and the bacteria make the protein as they grow.
Answer
The human insulin gene is put into bacteria.
Why not the others: Bacteria are fed human insulin so that they multiply faster: this does not make bacteria produce insulin. Bacterial genes are put into human pancreas cells to make insulin: this is the reverse. The bacteria are heated until they start to make the hormone: heat does not cause insulin production.
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