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12 Cards in this Set

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virus
a small infectious particle containing genetic material in the form of DNA or RNA within a protein capsule
capsid
a protein coat that surrounds the DNA or RNA of a virus
RNA
a nucleic acid found in all cells and some viruses; usually carries genetic information that provides instructions for synthesizing protein
ribonucleic acid
epidemic
a large - scale outbreak of diesease, usually confined to a limited geographic region
pandemic
an epidemic that occurs over a widespread geographic area, often globally
bacteriophage
a virus that infects bacteria
lysis
the rupturing of a cell; can occur when newly made viruses are released from a host cell
lysogeny
a state of dormancy in which viral DNA may remain within a host cells chromosome for many cell cycle generations
transduction
a type of gene transfer in which a virus transfers DNA from one bacterium to another
gene therapy
a method of treating disease in which genes are introduced into cells to replace, supplement, or repair a defective gene
viroid
very small infectious piece of RNA responsible for some serious diseases in plants
prion
abnormally shaped infectious protein responsible for some brain diseases of mammals, including humans