Biology: Viruses and Prions: Living or Nonliving?

[MsYellowcherry]

thank you very much... sincerely yours, fransisca... :-)

[TheFrenchiesRock]

very well explained. much better explained that my teacher did in 30 minutes.

[Mindbitesdotcom]

@TheFrenchiesRock Check out the link under the video for more helpful videos just like this one!

[chroniclerofthe70s]

@TheFrenchiesRock Not quite. A typical virus is a packaged nucleic acid, either DNA or RNA , single or double stranded surrounded by a protein coat (capsid ). They may or may not be surrounded by a lipid membrane (envelope). Viruses are obligate parasites.  Some are spherical, helical, or multi-triangular faced polyhedrons. This individual is describing a typical T4 bacteriophage, some bacteriophages have a capsid structure.

[chroniclerofthe70s]

@TheFrenchiesRock Excuse me. I meant to state some bacteriophages have rod like capsid structures.