Chp. 24

A nonliving particle made up of nucleic acid and a protein coat or nucleic acid and a lipid-protein coat

A protein coat

Bilipid membrane that surrounds the capsid

Inserted viral DNA

Contains the enzyme reverse transcriptase in addition to RNA

Uses RNA as a template to make DNA, which then inserts into the host cell's genome

Viruses that infect bacteria

A virus that invades a host cell, produces new viruses, and ruptures the host cell when releasing newly formed viruses

Viruses that reproduce only by the lytic cycle

Allows viruses to hide in their host cell for days, months, or years

A virus whose replication includes the lysogenic cycle

Phage DNA that is integrated into a specific site of the host cell's chromosome

An intermediate host that transfers a pathogen or a parasite to another organism

Class of drugs that block the synthesis of new viral capsids

Genes that cause cancer by blocking the normal controls on cell reproduction

Controls cell growth

Illnesses caused by new or reappearing infectious agents that typically exist in animal populations-often in isolated habitats-and can infect humans who interact with these animals

Not able to replicate in a host

A weakened form of the virus that cannot cause disease

The smallest known particles that are able to replicate

Infectious protein particles that do not have a genome