Two preparations of RNA polymerase from E. coli are used in separate experiments to catalyze RNA synthesis
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Two preparations of RNA polymerase from E. coli are used in separate experiments to catalyze RNA synthesis in vitro using a purified fragment of DNA carrying the argH gene as template DNA. One preparation catalyzes the synthesis of RNA chains that are highly heterogeneous in size. The other preparation catalyzes the synthesis of RNA chains that are all the same length. What is the most likely difference in the composition of the RNA polymerases in the two preparations?
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The first preparation of RNA polymerase is probably lacking the sigma subu...View the full answer
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Related Book For 
Principles of Genetics
ISBN: 978-1119142287
7th edition
Authors: D. Peter Snustad, Michael J. Simmons
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