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Unformatted text preview: PM Dna with number of functions: first genes translated are about to shut
down DNA polymerase system and destroy the bacteria's dna.
DNa can be any form ofnucleic acid
Comandeering bacteria for its own means Virus morphology
Viral DNA inside
Protein Head Sheath Tail Baseplate
Recognition fibers BIO1130 Organismal Biology Figure 21.1 & 3 Université d’Ottawa / University of Ottawa 38 2:39 PM difficult to call viruses living because.....
virus is not interacting with it's environment,
No ribosomes, no energy is required to operate ( stolen form cell that it
infects) Viruses aren’t cells? No cell membrane
wrapped in a
protein coat BIO1130 Organismal Biology
Université d’Ottawa / University of Ottawa BIO1130 Organismal Biology 39
2:39 PM Page 13 Archean eon Viral phases in replication Entry
Transcription and viral protein production
Replication of viral genome
Assembly of virions
Transmission to new host BIO1130 Organismal Biology 40 Université d’Ottawa / University of Ottawa 2:39 PM Bursting host cells Viruses – Replication
T-even phage Once entered, genome is turned into message containgin essential
proteings for virus to function,
Virions: self assembed protein coats and dNA exiting the host Replicated
phage DNA Phage DNA E. coli cell Head units
Tail units Bacterial
chromosome Phage DNA BIO1130 Organismal Biology Figure...
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