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Two parts that make up a viruses

Dna or Rna & protein

Where does a virus get its energy

host cell

Capsid

protein shell, jacket around core, shape of virus

Nucleocapsid

nucleo acid and capsid together

Shapes of viruses

icosahedral, helical/rod, envelope/spherical,

What is in the core of the virus

DNA or RNA

Virus Classification

nucleic acid

Bacteriophage

virus that infects bacteria

Prophage

bacteriophage thats harmless to host

Transduction

virus that carries genetic material from 1 cell to another

Temperate

virus does not cause disease

Virulent

disease causing

Viroid

single strand of RNA w/ no surrounding capsid

Viroids infect..

crops

Prion

partical composed only of protein

Prions can cause ..

mad cow disease

Retrovirus

contains only RNA

Absorption

virus attaches to host cell @ receptor site

Entry

virus injects nucleic acid into host cell

Replication

viral genes take over to direct the cell to make viral DNA & viral protein

Assembly

new viruses are put together

Release

viral enzyme breaks down cell wall of bacterial cell to release new viruses

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