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What does the replication fork do?

Replication Fork. The replication fork is a structure which is formed during the process of DNA replication. It is activated by helicases, which helps in breaking the hydrogen bonds, and holds the two strands of the helix. The resulting structure has two branching’s which is known as prongs, where each one is made up of single strand of DNA.

What are the sides of the replication fork called?

This is called the leading strand. The other strand is called the lagging strand. On the lagging strand, the new strand's 3'-hydroxyl end points away from the replication fork. This forces the elongation process to occur in a discontinuous manner. As replication moves along the template strand, a series of shorter DNA polymers form.

What happens first at each origin of a replication?

What happens first at each origin of replication? The initiation of DNA replication occurs in two steps. First, a so-called initiator protein unwinds a short stretch of the DNA double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands.

What does the replication fork do in DNA replication?

The replication fork * is a region where a cell’s DNA * double helix has been unwound and separated to create an area where DNA polymerases and the other enzymes involved can use each strand as a template to synthesize a new double helix.

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