Biology Chapter 13 Definitions

Questions and Answers

When viral DNA integrates into the host chromosome and never comes out, protected from the host's immune system and antiviral drugs.

A prophage can excise and enter the lytic cycle.

Transforming normal cells into cancerous cells due to mutagens, radiation, viruses, etc.

Remains in host cell and doesn't produce disease for long periods; may reactivate due to changes in immunity. Signup and view all the answers

Occurs gradually over a long period; is generally fatal as the virus accumulates over time. Signup and view all the answers

The spectrum of host cells a virus can infect. Signup and view all the answers

Study Notes

Refers to viral DNA integrated into the host chromosome.
Remains permanently within the host cell, providing protection from the immune system and antiviral medications.

A form of viral DNA that can excise itself from the host chromosome.
Capable of entering the lytic cycle, which leads to viral replication and cell lysis.

A gene that has the potential to convert normal cells into cancerous cells.
Activation can result from mutagens, radiation exposure, or certain viral infections.

Viral infections that stay dormant within a host cell without causing disease for an extended period.
Can reactivate due to immunological changes or other stressors on the host.

Infections that develop slowly and remain over a long duration, often leading to severe outcomes or death.
Characterized by a gradual accumulation of the virus, rather than a sudden onset.

Defines the variety of host cells or organisms that a specific virus can infect.
Determines the virus's ability to spread and establish infections in different species or cell types.

Questions and Answers