Chapter 6/27 Keywords Flashcards
The transfer of a disease like cancer from one organ to another not directly connected with it
Metastasis
an outer membranous layer that surrounds the nucleocapsid in some viruses
Envelope
a bacteriophage that regularly causes lysis of the bacteria that it infects
Virulentphage
A clear area in a lawn of host cells that results from their lysis by viruses.
Plaque
A viral nucleic acid strand that is equivalent in base sequence to the viral mRNA
Plus Stand
Virus infection with a fairly rapid onset that last for a relatively short time
Acute Infection
the nucleic acid core and surrounding capsid of a virus
Nucleocapsid
obligate intracellular parasite
Virus
A virus life cycle that results in the lysis of the host cell
Lytic Cycle
Bacterial viruses that can establish a lysogenic relationship, rather than immediately lysing their hosts
Temperate Phage
The normal cellular form of a gene that when mutated or overexpressed results in or contributes to malignant transformation of a cell
Protoon Cogene
An infectious agent consisting only of protein
Prion
A viruse with an RNA genome that carries the enzyme reverse transcriptase and forms a DNA copy of the genome during their reproductive cycle
Retro Virus
The protein coat or shell that surrounds a virion’s nucleic acid
Capsid
A complete virus particle that represents the extracellular phase of the virus life cycle;
Virion
The reversion of an animal cell to a more primitive, undifferentiated state
Anaplasia
Abnormal cell growth and reproduction due to a loss of regulation of the cell cycle; produces a tumor in solid tissues
Neoplasia
A virus that uses bacteria as its host
Bacterio phage
The latent form of a temperate phage that remains within the lysogen, usually integrated into the host chromosome
Prophage
A viral single-stranded nucleic acid that is complementary to the viral mRNA.
Minus Strand
The state in which a viral genome remains within the bacterial cell after infection and reproduces along with it rather than taking control of the host cell and destroying it
Lysogeny
A gene whose activity is associated with the conversion of normal cells to cancer cells.
Oncogene
the action of a substance in attracting and holding other materials or particles on its surface.
adsorption
