A (an)_______is a nonliving particle made up of nucleic acid and a protein coat or nucleic acid and a lipid-protein coat.
A protein coat, or _______is the only layer surrounding some viruses.
Some viruses have a bilipid membrane called a (an) _______that surround the capsid.
The inserted viral DNA into a host genome is known as a (an) _______.
Some RNA viruses, called _______, contain the enzyme reverse transcriptase in addition to its RNA.
_______ uses RNA as a template to make DNA, which then inserts into the host cell's genome.
Scientists have gained a better understanding of virus replication by studying _______, viruses that infect bacteria.
During the _______, a virus invades a host cell, produces new viruses, and ruptures (lyses) the host cell when releasing newly formed viruses.
Viruses that reproduce only by the lytic cycle are called _______.
In the last step in the lytic cycle, the phage enzyme lysozyme digests the cell wall, and up to 200 new phage particles burst from the bacterial cell in a process called _______.
A lytic cycle directly bursts an infected cell, but an infection cycle called a _______ allows viruses to hide in their host cell for days, months, or years.
A virus whose replication includes the lysogenic cycle is called a (an) _______.
Phage DNA that is integrated into a specific site of the host cell's chromosome is called a (an) _______.
A (an) _______ is an intermediate host that transfers a pathogen or a parasite to another organism.
_______ of viral diseases include humans, animals, mosquitoes, ticks, and fleas.
A class of drugs, called _______, blocks the synthesis of new viral capsids.
Some viruses contain viral _______, genes that cause cancer by blocking the normal controls on cell reproduction.
DNA inserts itself into a host's chromosome near a _______, which usually controls cell growth. _______ is converted to an oncogene.
_______ are illnesses caused by new or reappearing infectious agents that typically exist in animal population--often in isolated habitats--and can infect humans who interact with these animals.
A (an) _______ is not able to replicate in a host.
A (an) _______ is a weakened form of the virus that cannot cause disease.
A (an) _______ is the smallest known particle that is able to replicate, and is made up of a short, circular, single strand of RNA that does not have a capsid, and infects plants.
_______ are infectious protein particles that do not have a genome.