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Ch 18 Viruses

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particle made up of nucleic acid, protein, and in some cases lipids that can replicate only by infecting living cells
the outer covering of protein surrounding the nucleic acid of a virus
a membrane that cloaks the capsid that in turn encloses a viral genome
viruses that infect bacteria
The limited range of host cells that each type of virus can infect and parasitize.
a method of viral replication that results in the destruction of a host cell and the release of many new virus particles
A phage that reproduces only by a lytic cycle.
enzymes that cut dna at a specific sequence of nucleotides
cycle in which a viral genome replicates as a provirus without destroying the host cell
Phages that are capable of using either the lytic or lysogenic cycle.
the viral DNA that is embedded in the host's DNA
a special type of RNA virus that contains the enzyme reverse transcriptase
a polymerase that catalyzes the formation of DNA using RNA as a template
the virus that causes acquired immune deficiency syndrome (AIDS)
a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles
a widespread outbreak of an infectious disease
an epidemic that is geographically widespread
Infectious protein particles that do not have a genome.
single-stranded circular RNA molecules that have no surrounding capsids and infect plants
A pathogen is passed from one living organism to another living organism through respiratory droplets, blood, or other bodily fluid.
The spread of a disease from mother to newborn.
dead or weakened pathogens that are injected into the body to cause the production of antibodies that will prevent disease

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