Viral Replication

by / Monday, 13 September 2010 / Published in Pathology

HOW DO VIRUSES REPRODUCE

Recombination – is the exchange of genetic material between 2 chromosomes by cross-over of certain regions that have important base sequence homology.

Reassortment – is the exchange of viral semgents (from segmented viral genomes).  This occurs at high frequency and is responsible for worldwide illnesses (pandemics).

Complementation – occurs when one functional virus helps another non-functional virus become functional.

Phenotypic Mixing – occurs when a certain virus has the surface coating from another virus’ protein, which will then determine the infectivity of this virus particle.

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