Explain the process of replication in prokaryotes.

Question

21 Jul 2024

Answer :

Word Count : 601

Replication in prokaryotes is a fundamental process ensuring that genetic material is accurately copied before cell division. This process is remarkably efficient and involves several key steps and enzymes. Here’s an overview of how replication occurs in prokaryotes:

### 1. Initiation

Origin of Replication: In prokaryotes, such as bacteria, replication begins at a single location on the circular DNA molecule known as the origin of replication, or 'oriC'. This region is rich in adenine-thymine (AT) pairs, which are easier to separate due to the fewer hydrogen bonds compared to guanine-cytosine pairs.

Binding of Initiator Proteins: The process is initiated by initiator proteins, such as DnaA in E. coli. DnaA binds to DnaA-boxes in the oriC region, leading to the formation of a complex that induces local DNA unwinding. This is followed by the binding of other proteins that help to stabilize and further unwind the DNA.

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