helicase

enzyme

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Last updated

July 16, 2026

Quick Summary

Helicase is an enzyme crucial for DNA replication and other cellular processes involving nucleic acids. Its primary function is to unwind the two strands of the DNA double helix, a process that requires energy. This unwinding allows other enzymes, such as DNA polymerases, to access the genetic information on each strand and synthesize new DNA molecules. Helicases are essential for cell division, tissue growth, and repair, ensuring that genetic material is accurately duplicated and passed on to daughter cells. Without helicase activity, DNA replication would be impossible, halting cell proliferation and organismal development.12

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heredity
DNA replication
Enzymes called helicases then separate the two strands of the double helix, exposing two template surfaces for the alignment of free nucleotides. Beginning at the origin of replication, a complex enzyme called DNA polymerase moves along the DNA molecule, pairing nucleotides on each template strand with free…
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Enzymes called helicases then separate the two strands of the double helix, exposing two template surfaces for the alignment of free nucleotides. Beginning at the origin of replication, a complex enzyme called DNA polymerase moves along the DNA molecule, pairing nucleotides on each template strand with free…
Read More