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Helicase Definition and Explanation PDF | Download eBooks

Learn Helicase definition in biology with explanation to study “What is Helicase”. Study helicase explanation with biology terms to review biology course for online degree programs.

Helicase Definition:

  • Helicases are enzymes that untwist the double helix at the replication forks, separating the two parental strands and making them available as template strands.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Helicase Explanation:

Several enzymes participate in the DNA replication process including helicase. These are one of the important enzymes that need to be present in order for DNA to replicate. Helicases basically are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes by unwinding the DNA. There are DNA and RNA helicases. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.

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