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Stephen Harrison (Harvard) Part 1: Virus structures: General principles

December 27, 2019


  • Reply axel714 July 30, 2012 at 11:26 am

    where in nature virus are created ?

  • Reply Mārtiņš Tereško September 10, 2012 at 10:38 pm

    Viruses are created by cells. No cell = no viruses.

    But if you are asking about the origin of first viruses, then there are two hypothesis about it. Either they originally were come from plasmids that cells exchange or they were originally bacteria, which gradually lost the ability to reproduce on its own.

  • Reply Reyadh Al-Rashidi March 3, 2013 at 2:17 pm

    Thanks Dr Stephen 🙂

  • Reply Scott Tarone January 29, 2014 at 4:24 am

    I often wonder about the role of the virus in evolution, and I think, perhaps, it played a critical role in the advancement of life early on.  As we observe today, of course, viral replication is dependent on cells, but I wonder if, given the possibility of RNA being the earlier information store, viruses may not have been examples of proto cells with the replication mechanism largely lost to history.

  • Reply Abhijeet Singh Barath May 18, 2014 at 11:24 am

    Such a beautiful presentation; directly hammering the why, how and what about viruses into the head. Thank u dr. Stephen:)

  • Reply jellydoughnuts87 May 7, 2018 at 3:42 am

    I know this is supposed to be the refined and educated section of YouTube but just wanted to say these videos make my dick hard…

  • Reply Greg Beals May 2, 2019 at 1:07 am

    These mini presentations are gold! Icosahedral structure…loving this

  • Reply Jay Muzquiz July 27, 2019 at 4:22 pm

    I never graduated high school but I love watching these presentations! This is so [email protected] interesting I can't get enough!

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