RNA Polymerase from E

question 50

Multiple Choice

RNA polymerase from E.coli (core enzyme alone) has all of the following properties except that it:

• A)can extend an RNA chain and initiate a new chain.
• B)is required for the synthesis of mRNA,rRNA,and tRNA in E.coli.
• C)produces an RNA polymer that begins with a 5'-triphosphate.
• D)recognizes specific start signals in DNA.
• E)requires all four ribonucleoside triphosphates and a DNA template.

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