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vocabulary ch. 20

vocabulary 20

QuestionAnswer
Viruses Are segments of nucleic acids contained in a protein coat
Pathogens Agents that cause disease
Capsid May contain either RNA or DNA, but not both
Envelope Many viruses, such as the influenza virus
Glycoproteins Which are proteins with attached carbohydrate molecules
Bacteriophages Has a complicated structure
Lytic In bacterial viruses, the cycle of viral infection, replication, and cell destruction
Provirus Instead of producing virus particles, the viral gene is inserted into the host chromosome
Lysogenic The viral genome replicates without destroying the host cell
Prions Composed of proteins but have no nucleic acid
Viroid A single strand of RNA that has no capsid
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