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    hi,

    I keep reading conflicting explanations of what enzymes are involved in the process of transcription.

    Wikipedia claims that

    RNA polymerase unwinds/"unzips" the DNA by breaking the hydrogen bonds between complementary nucleotides

    whereas my textbook claims that it is DNA polymerase that unzips the DNA strand

    which one is actually correct - to me the first explanation makes more sense- because I believe RNA polymerase binds on just downstream from the start codon :dontknow: ?
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    I think the safest is to go with what the textbook says because after all the same board will write the exams
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    I'm pretty sure it's RNA polymerase, what textbook do you have?
    Ask your teacher
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    (Original post by heartskippedabeat)
    I'm pretty sure it's RNA polymerase, what textbook do you have?
    Ask your teacher
    thanks it's nelson thornes
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    hmm the syllabus just mentions RNA polymerase :holmes:
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    It's RNA polymerase. DNA polymerase ^is for DNA replication
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    Definitely RNA Polymerase
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    In the process of transcription I'm pretty sure it's the RNA polymerase which has helicase activity as DNA polymerase isn't actually involved in transcription.
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    Yes, definitely RNA polymerase - as Sigma said a helicase activity is required and DNA pol lacks that (which is why for DNA replication a separate helicase is required)
 
 
 
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