During DNA replication, several events occur in a sequential manner. First, an enzyme called helicase unwinds and separates the DNA double helix by breaking the hydrogen bonds between the nucleotide bases. This creates a replication fork.
Next, another enzyme called DNA polymerase attaches to the separated strands at the replication fork. DNA polymerase moves along the parent strand in the 3' to 5' direction, synthesizing a new complementary strand in the 5' to 3' direction. The parent strand serves as a template for the formation of the new strand.
As DNA polymerase moves along the parent strand, it adds nucleotides to the growing new strand according to the base pairing rules (A with T, C with G). Adenine pairs with thymine, and cytosine pairs with guanine.
There are two parent strands at the replication fork, one is oriented in the 3' to 5' direction (leading strand) and the other is oriented in the 5' to 3' direction (lagging strand). The leading strand is synthesized continuously, while the lagging strand is synthesized in short fragments called Okazaki fragments.
The enzyme DNA ligase then joins these Okazaki fragments to form a complete complementary strand. Finally, two identical DNA molecules are formed, each with one new strand and one original parent strand. This process ensures the accurate replication of genetic information.
Explain the sequence of events occuring in DNA replication
Narrate in a very short
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