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3 November, 11:58

A short piece of DNA or RNA onto which DNA polymerase begins to add nucleotides

a. Leading strand

b. Okazaki fragment

c. primer

d. clamp-loading complex

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Answers (2)
  1. 3 November, 12:13
    0
    c. primer

    Explanation:

    DNA polymerases are enzymes that carry out DNA replication. This enzyme cannot initiate the synthesis of the new chain, therefore, a short fragment of RNA that is called a primer must be created and must be matched to the chain that will be used as a template. Thus, the DNA polymerase enzyme begins to add nucleotides from the first one extending the 3 'end of the existing chain.
  2. 3 November, 12:24
    0
    Primer

    Explanation:

    DNA polymerase can't start adding nucleotides without having something to "hold on" to. This is why it needs a small fragment of DNA or RNA that binds the DNA template where it needs to be copied. Without this primer, DNA polymerase doesn't work.
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