Question about RNA viruses

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    • #11135
      halloooo
      Participant

      I encountered this question on yahoo and found it rather interesting.

      Do viruses follow the central dogma.

    • #89928
      canalon
      Participant

      Depends.
      Class III to V in the Baltimore classification system are basically following what was known as the central dogma. But the class VI (retroviruses) proved that the central dogma was an oversimplification, and not always true.

    • #89946
      yakowon
      Participant

      —————–

    • #89963
      halloooo
      Participant

      So is there any difference between the genes and proteins of retroviruses and eukaryote?

    • #89969
      MrMistery
      Participant

      well genes and proteins of viruses are usually different of those of eukaryotes, except that there are retrovirus-like transposons in the eukaryotic genomes (at least in the human genome, I don’t know about most other EKs). Your question is confusing

    • #89978
      canalon
      Participant

      OK The central dogma was:
      Genetic Info is stored as DNA then transcribed in mRNA and finally translated in protein. This is a one way sequence.
      Now open your textbook on RNA viruses and look how they store the genetic information (that should be obvious) and how the protein are produced. You will see that the answers are slightly different for the different classes of RNA viruses, but that for dsRNA, +ssRNA and -ssRNA are a bit off the archetypal model, but still following the basic rule of the (now outdated) central dogma, that is the unique direction of the flow of the genetic information. However the last class (retroviruses) proved that even that rule was not universal. I let you find the details.

    • #90062
      LifeTein
      Participant

      I agree with canalon about the central dogma. The dogma will not be universal as we have deeper knowledge about viruses. Viruses are small. But definitely it is one of the most mysterious life forms in the world.

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