Chapter 17 Flashcards
 The symptoms and signs present during the late stages of HIV infection, defined by a specified reduction in the number of T cells in the appearance of characteristic secondary infections
AIDS (acquired immunodeficiency syndrome)
A virus that infects bacteria also called a phage
Bacteriophage
The proteins show that encloses a viral genome. It may be rod shaped, polyhedral, or more complex and shape
Capsid
A general outbreak of a disease
Epidemic
The infectious agent that causes AIDS. It is a retrovirus
HIV (Human immunodeficiency virus)
The limited number of species whose cells can be infected by a particular virus
Host range
A type of phage replicative cycle in which the viral genome becomes incorporated into the bacterial host chromosome as a prophage, is replicated along with the chromosome, and does not kill the host
Lysogenic cycle
A type of faze replicative cycle resulting in the release of new phages by lysis (and death) of the host cell
Lytic cycle
A global epidemic
Pandemic
A virus that infects bacteria; also called a bacteriophage
Phage
An infectious agent that is a misfolded version of a normal cellular protein. They appear to increase in number by converting correctly folded versions of the protein to more of them
Prion
A phage genome that has been inserted into a specific site on a bacterial chromosome
Prophage
A viral genome that is permanently inserted into a host genome
Provirus
And endonuclease (type of enzyme) that recognizes and cuts DNA molecules for into a bacterium (such as phage genomes). The enzyme cuts at specific nucleotide sequences (restriction sites)
Restriction enzyme
An RNA virus that replicates by transcribing its RNA into DNA and then inserting the DNA into a cellular chromosome; an important class of cancer causing viruses
Retrovirus
