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RNA polymerase
An enzyme that transcribes an RNA molecule from the template strand of a DNA molecule. It adds to the 3' end of the growing RNA molecule one nucleotide at a time using ribonucleotide triphosphates (rNTPs) as substrates (this reaction releases pyrophosphates). RNA polymerase I is dedicated to the synthesis of only one type of RNA molecule (pre-rRNA). RNA polymerase II is required for general transcription reactions. RNA polymerase III produces small RNAs such as tRNAs and 5S rRNA.
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Science Dictionary INDEX:List of Terms: Terms beginning with "A", Page 1 |
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 A: Page 1 of 22. |
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