Question

What happens first at each origin of replication?

Answer 1

$\textbf{\large{Answer -}}$

The origin of replication is also known as replication origin.

It is the place where replication is initiated.

First at the origin of replication the enzyme DNA helicase starts unwinding the DNA.

Enzymes unwind DNA half of the original DNA is in the replicated DNA.

Answer 2

➡️DNA replication typically begins at a single origin of replication. ...


➡️The helicase DnaB forms the basis of the primosome, a complex of enzymes to which DNA polymerase III is recruited before replication can occur .