Biology: Viruses and Prions: Living or Nonliving?

http://www.mindbites.com/series/398 for a bundle of videos on The Evolution of Life on Earth.

To search for topic-specific help in our library of 400+ video products for Biology, please refer to our Biology category at: http://www.mindbites.com/category/22-biology .

To check out our full Biology video course, with 390+ videos included, refer to: http://www.mindbites.com/series/441-biology .

Or, for access to this single video, go to: http://www.mindbites.com/lesson/4252 .

Category:

Education

Tags:

• biology
• learn
• how
• to
• bio
• viruses
• prions
• living
• nonliving
• tutor
• teacher
• evolution
• life
• earth
• Viruses
• Prions

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

[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.

[MsYellowcherry]

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