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Viruses
Chap 19
17
Biology
Not Applicable
01/15/2004

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Term
Structure of a Virus
Definition
DNA or RNA core and a protein coat called a capsid
Term
Characteristics of a Virus
Definition
Reproduces by attaching to a living cell
Contains DNA or RNA
Mutates
Term
Antibody
Definition
protein that helps destroy pathogens
Term
Antibody
Definition
protein that helps destroy pathogens
Term
Pathogen
Definition
disease causing agents
Term
antigen
Definition
substance that triggers and immune response
Term
Vaccine
Definition
a preperation of weakened or killed pathogens
Term
Lytic Cycle
Definition
process in which a virus enters a cell, makes a copy of itcself and causes the cell to burst
Term
Lysogenic Cycle
Definition
process by which a virus embeds its DNA into the DNA of the host cell and is replicated along with the host cell's DNA
Term
Retrovirus
Definition
Virus that uses RNA rather than DNA
Term
Bacteriophage
Definition
a virus that infects bacterium
Term
prophage
Definition
viral DNA that is injected into the host cell
Term
Prion
Definition
infectious particle made up of protein rather than RNA or DNA
Term
About Viral Diseases
Definition
Disrupts the body normal equilibrium,
cant be treated with antibiotics
Term
Polivirus
Definition
infects cells and kills viruses in the nervous sytem which causes paralysis
Term
Edward Jenner
Definition
Investigated the folk beilef that if someone had cowpox, they were immune from small pox
Helped start the study of Vaccine
Term
Jonas Salk
Definition
Development of a polio vaccine
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