Viral Infections

Virus enters a cell via a cell-surface receptor for which it has affinity and preempts cell biosynthetic machinery to replicate all components of itself, including its genome.

This genome replication step is often error prone, generating numerous mutations.

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#Unit 3. Fundamental Processes

The unit of DNA in which an individual act of replication occurs is called the replicon

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#Unit 3. Fundamental Processes

It has an origin at which replication is initiated. It may also have a terminus at which replication stops.

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#Unit 3. Fundamental Processes

An origin at which replication is initiated. It may also have a terminus at which replication stops.

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#Unit 3. Fundamental Processes

Replicon" is usually applied to eukaryotic chromosomes to describe a unit of replication that contains an origin.

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#Unit 3. Fundamental Processes

A plasmid is an autonomous circular DNA that constitutes a separate replicon.

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#Unit 3. Fundamental Processes

A replicated region appears as a bubble within nonreplicated DNA.