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ARAVIND113122
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how does Helicase unwind the dna strands?what is the chemical Process involved?what is the chemical reaction?
Helicase is an enzyme that binds to the DNA double helix and moves along the DNA molecule, breaking the hydrogen bonds between the complementary nucleotides. This action causes the two strands of the DNA to separate, resulting in the unwinding of the DNA helix.
The main function of Helicase in DNA replication is to separate the two strands of the DNA double helix so that each strand can serve as a template for the synthesis of a new complementary strand. This allows for the creation of two identical copies of the original DNA molecule.
Helicase binds to specific sequences of nucleotides called origin of replication sites, which are recognized by other proteins and enzymes involved in DNA replication. The binding of Helicase to these sites marks the beginning of the unwinding process.
Yes, Helicase moves in the 5' to 3' direction along the DNA molecule. This means that it unwinds the DNA in the same direction that DNA polymerase synthesizes new strands.
The chemical process behind Helicase unwinding the DNA involves the breaking of hydrogen bonds between the complementary nucleotides in the DNA double helix. This process requires energy, which is provided by ATP molecules that are hydrolyzed by Helicase as it moves along the DNA molecule.