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Turning Genes 'On' And 'Off' Lab Investigation


Neo/Sci. Explore how genes respond to their environment. Class size - 40 students.

Use a safe, commonly found microbe to investigate and predict the effect of temperature on gene regulation and expression. Expression of this particular gene is easily recognized by the production of a pigment which turns the bacteria colonies red for a striking visual demonstration of gene manipulation. Further investigations allow students to design their own experiments to identify other variables which may affect gene expression.

Your students will: observe the varying colors of bacteria grown under different temperature conditions; explain why different bacterial colors are produced at different temperatures; infer the mechanisms involved in gene expression; understand the realationship between gene expression and environment;  learn how to use aseptic techniques when culturing bacteria.  


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