What is the function of helicase in dna replication?

Sourav Bio

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What is the function of helicase in dna replication?

Helicase is an enzyme that plays a crucial role in the process of DNA replication. Its main function is to unwind the double helix of DNA so that it can be replicated.

During DNA replication, helicase unwinds the two strands of the double helix by breaking the hydrogen bonds that hold them together. This allows the two strands to separate and serve as templates for the synthesis of new complementary strands.


Helicase achieves this by hydrolyzing ATP (adenosine triphosphate), a source of energy for the cell. The energy from ATP is used to power the mechanical unwinding of the DNA double helix.

In addition to its role in DNA replication, helicase also plays a role in DNA repair and transcription (the process by which genetic information is transcribed from DNA to RNA).

Overall, helicase is an essential enzyme that plays a key role in the maintenance and reproduction of the genetic material in cells.

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