BIOL 1201 Lecture : Biology Lecture Notes
Document Summary
Dna structure, reproduction translation transcription meiosis mitosis mutations. Viruses do not belong in our family tree of life- they are not living they are either active or inactive. Size comparison of prokaryotes, eukaryotes, and viruses: eukaryotes (10-100 micrometers), prokaryotes (0. 2-10 micrometers), viruses (smallest non living) (0. 05-0. 2 micrometers) virsues are very very small although there is always overlap. Viruses: are most of the time parasites obligate intracellular parasites symbiotic relationship beneficial for the virus. Virus there are two hypotheses - stripped down from living prokaryotes or that they were created separately whenever life was created. Protein shell capsid consist of viral encoded proteins. Viral structures vary quite a bit see slide on powerpoint. Viral reproduction twp different terms you have to know for this (the first one is lytic growth) infection of host cells infected cell synthesizes viral genome and protein (capsid) synthesis of other viral components. Host cell lysis releases particles see powerpoint for the picture.
