Molecular Genetics of Prokaryotes Problem Set

Problem 1: Components of the lac operon of E. coli


Which of the following is not part of the lac operon of E. coli?

A. genes for inducible enzymes of lactose metabolism
B. genes for the repressor, a regulatory protein
C. gene for RNA polymerase
The RNA polymerase genes encode subunits of the DNA-dependent RNA polymerase that are involved in the transcription of all E. coli operons.
D. a promoter, the RNA polymerase binding site
E. the operator, the repressor binding site

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Updated: July 15, 1999
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