O-LevelBiologyGenetics & Variation5090/11 · May/June 2010 · Q381 Mark

Bacteria can be genetically modified to produce human insulin. What is a possible danger of this procedure?

ABacterial insulin is less effective in treating diabetes than animal insulin.

BThe genetically modified bacteria may become insulin resistant.

CThe genetically modified bacteria may produce too much insulin.

DThe presence of a new gene in the bacteria may alter the way that existing genes work.

✓ Correct answer

D: The presence of a new gene in the bacteria may alter the way that existing genes work.

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Topic: Genetics & Variation, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2010 Paper 1 Variant 1, question 38.

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