A collection of experiments that demonstrate biological concepts and processes.
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Controlling gene expression

Understanding how the expression of genes is controlled is essential to a full understanding of cell differentiation, of growth and repair and of conditions such as cancer.

  • Gene induction: β-galactosidase in E. coli
    Use lactose to switch on the gene for β-galactosidase production in E.coli. Use a modified substrate to give a coloured product. Measure enzyme activity by colorimetry.