If retroviruses or adenoviruses have mote advantage
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If retroviruses or adenoviruses have mote advantage

[From: ] [author: ] [Date: 13-03-06] [Hit: ]
Retroviruses have to use integrate their rna into dna, by the use of integrase, and by using the famous protein, reverse transcriptase to convert their dna (this process produce alot of mutations, thus allowing retroviruses to rapidly evolve), a good example is becoming resistant to anti-retroviral drugs.......
I know that dna as genetic material has advantage over rna genetic material as dna repair system is more elaborate and effectively it conserves genetic information through generations in eukaryotic organism.but for virus which genetic material is more advantageous?

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lets get this clear, dna can be repaired with dna repair system.
Retroviruses have to use integrate their rna into dna, by the use of integrase, and by using the famous protein, reverse transcriptase to convert their dna (this process produce alot of mutations, thus allowing retroviruses to rapidly evolve), a good example is becoming resistant to anti-retroviral drugs. Rna is more unstable than dna, and thus allow higher mutation rates, it is benefit to the retrovirus.
Since adenoviruses are dna viruses, they have much more stable genomes, and less prone to harmful mutations or causing mutations.
For viruses rna viruses specifically is more beneficial, but they are typically less robust and fragile than dna viruses. They have very high mutation rates due to the instability of rna genomes, allowing for higher evolutionary advantages. Also retroviruses is proving to be driving force behind vertebrate evolution, as they intergate integrate into host genomes, and possibly allow new genes to evolve and provides evolutionary advantage(it is not well understood why this happens)
to summarize.
retroviruses or rna viruses, have highly unstable genomes, higher ability to evolve around the host anti-viral defenses, integrate into host allow for evolution.(dna viruses can do this, but for bacteria)
dna viruses: much more stable, can have complex dna genomes, evidence of this has been shown in the mimivirus and the mamavirus, which are one of the most largest and complex viruses ever discovered, rivaling those of bacteria.
so for viruses, generally both rna and dna genomes are advantageous to them.
Some viruses are more advantageous for the host, mostly bacteriophages, which can increase the virulence of bacteria by giving them toxin genes.
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