Helicase --> dna helicase

(Science: enzyme molecular biology) a prokaryote enzyme that uses the hydrolysis of atp to unwind the dna helix at the replication fork, to allow the resulting single strands to be copied.

two molecules of atp are required for each unwinding of the duplex.The enzyme that is capable of unwinding the double helix structure of dna, which alters the hydrogen bonds present in dna. Helicase therefore plays a part in dna replication and also requires some atp to function as activation energy.

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