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Bacteria and Viruses Flashcards

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16554814348retrovirusvirus that possesses RNA instead of DNA as its genetic material; also has reverse transcriptase that can synthesize viral DNA from RNA so it can be incorporated into the host cell's genome0
16554818026viral envelopeadditional protective membrane in some viruses that helps the virus incorporate into host cells1
16554818709conjugationprocess by which two bacteria make contact through a pilus bridge and exchange genetic information; acts to increase genetic variation in asexually reproducing organisms2
16554820099transductionprocess by which a bacterium picks up new genetic information from another bacterium through a viral intermediate3
16554820851transformationmeans of genetic recombination in bacteria in which a bacterium picks up and expresses foreign DNA from other bacteria or from the environment4
16554822086viroidsmall pieces of infectious nucleic acid typically found parasitizing plants; infectious unit smaller than a virus5
16554822457prophageviral DNA when incorporated into the bacterial host's genome; also called a provirus6
16554822858prionsmall pieces of infectious protein7
16554823284capsidprotective outer coating in many viruses composed of protein8
16554823886bacteriophagevirus whose host range includes bacteria; also called a phage9
16554824474lysogenic cyclephase of viral replication in which the viral DNA becomes incorporated into the host cell's genome as a prophage but does not cause lysis10
16554825464lytic cyclephase of viral replication in which the virus is immediately virulent; the DNA of the virus is inserted into the host cells and is transcribed and translated by the host cell to synthesize new viruses that cause cell lysis11

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