What are the main and most obvious differences of lytic and lysogenic cycles?

In a nut shell, how do retroviruses work?

The lytic and lysogenic cycles are a result of viruses, not specifically retroviruses. Retroviruses use reverse transcription to do their damage. A shortened version of the process of reverse transcription is: 1) synthesis of DNA from an RNA template (retroviruses do not insert DNA into the host cell, they have RNA which is inserted), 2) synthesis of DNA from the DNA template, 3) production of new proteins for the virus. The viruses are assembled inside the host cell, which then leads to the lytic cycle (where the virus immediately bursts from the cell) or the lysogenic cycle (which is temperate, where the virus lives inside the host cell for a period of time until prompted to enter the lytic cycle). The assembly of the viruses and entering of either cycle is part that just about every virus goes through. Retroviruses have to go through the extra steps of changing RNA to DNA...hope that helps. If you want to find it in print, I suggest a basic biology textbook, a microbiology textbook, a genetics textbook or a virology textbook. :)

Well there are most obvious differences between lytic and lysogenic cycles. The main difference is that in lytic cycle the virus DNA replicates in Bacteria and use the genetic material of bacteria to make many viruses of their own kind and then the bacterial cell bursts and viruses are exposed of for other bacterial cells and in lysogenic cycle the viral DNA take the hold of the bacterial cells and by taking control over the chromatin material of bacteria they make new cells of bacteria which have a replicated DNA of virus and ultimately lytic cycle starts and kills the bacteria but in lysogenic cycle a large number of viruses are formed by the division of bacterial cells

In lysogeny, a bacteriaphage integrates its nucleic acid into the host bacteria's genome. In lytic conversion, the virus injects it's information into the cell, without ever entering the cell.

retroviruses use the lytic cycle; however I think they are somewhat combined.

http://en.wikipedia.org/wiki/Retrovirus

http://en.wikipedia.org/wiki/Lytic

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15 March 2010 | cameltoepants.com | edit