Chapter 16 Worksheet Part 2

Chapter 16 Worksheet Part 2 - Chapter 16: Control of Gene...

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Chapter 16: Control of Gene Expression Part II You will need to know two specific operons found in E. coli in great detail: the lac operon and the trp operon. Lac Operon: The lac operon is a (negative, positive) (repressible, inducible) operon that controls the metabolism of the molecule __________________ for energy. Name the three different enzymes produced by the lac operon and their function: Z gene: Y gene: A gene: When lactose is absent, the regulator protein (which is a _____________________) binds to the operator and prohibits transcription (this saves energy because the cell is not making enzymes when it does not need them). When lactose is present, the enzyme ________________________ converts some of the lactose into _____________________. This molecule binds to the repressor and allows transcription of the operon to take place. Match the following mutations with their descriptions: ______ 1. RNA polymerase cannot bind to the promoter a. lacP - ______ 2. No permease produced b. lacZ
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This note was uploaded on 04/14/2008 for the course BIO 2306 taught by Professor Durhkopf during the Spring '08 term at Baylor.

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Chapter 16 Worksheet Part 2 - Chapter 16: Control of Gene...

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