2. Virus Lecture

3. Virus The nonliving Undead

4. Virus Characteristics About as big as a protein Basic Virus Anatomy 1. outer protein coat 2.Inner core of nucleic acid

5. Viruses cannot reproduce on their own

6. Kinds of Viruses: -Viruses cannot be stopped using antibiotics because they are non-living particles!

7. Virus reproduction They cannot reproduce outside of a living cell! Host specific – Rabbit viruses only infect specific rabbit spp – HIV only infects certain white blood cells They cannot reproduce outside of a living cell!

8. Virus Reproduction 1.) attach to host cell 2.) viral DNA or RNA enters cell 3.) viral DNA or RNA codes for proteins and enzymes of the virus

9. Lytic vs Lysogenic Lysogenic – latent period – not actively producing viruses Lytic – producing more viruses… like crazy!

12. Retrovirus Viruses that carry RNA Also have enzyme called reverse transcriptase RNA  DNA, Than DNA is incorporated into host’s DNA,

13. Prions… yikes! Verdi Is our favorite! -Jon