For the release of new viral particles

For the release of new viral particles - called the...

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For the  release  of new viral particles, any of a number of processes may occur. For  example, the host cell may be “biochemically exhausted,” and it may disintegrate,  thereby releasing the virions. For enveloped viruses, the nucleocapsids move toward the  membrane of the host cell, where they force themselves through that membrane in a  process called  budding.  During budding, a portion of cell membrane pinches off and  surrounds the nucleocapsid as an envelope. The replication process in which the host  cell experiences death is called the  lytic cycle  of reproduction. The viruses so produced  are free to infect and replicate in other host cells in the area.  Lysogeny.  Not all viruses multiply by the lytic cycle of reproduction. Certain viruses  remain active within their host cells for a long period without replicating. This cycle is 
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Unformatted text preview: called the lysogenic cycle. The viruses are called temperate viruses , or proviruses , because they do not bring death to the host cell immediately. In lysogeny, the temperate virus exists in a latent form within the host cell and is usually integrated into the chromosome. Bacteriophages that remain latent within their bacterial host cell are called prophages. This process is a key element in the recombination process known as transduction. An example of lysogeny occurs in HIV infection. In this case, the human immunodeficiency virus remains latent within the host T-lymphocyte. An individual whose infection is at this stage will not experience the symptoms of AIDS until a later date....
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This note was uploaded on 11/11/2011 for the course BIO 101 taught by Professor Pesthy during the Fall '07 term at Texas State.

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