Virus Flashcard

Front

What is a retrovirus?

Back

A virus with RNA instead of DNA.

Front

Why do most biologists not consider viruses to be living?

Back

They do not exhibit all the characteristics of life.

Front

What type of genetic material can a virus contain?

Back

DNA or RNA, but not both.

Front

What is the size range of most viruses?

Back

5 to 300 nanometers.

Front

How do prions cause disease?

Back

By folding incorrectly and causing other proteins to fold incorrectly.

Front

What is a virus?

Back

A microscopic infectious agent that can only replicate inside a host cell.

Front

What is the difference between DNA and RNA viruses?

Back

DNA viruses contain DNA as their genetic material, while RNA viruses contain RNA.

Front

What is the role of a virus's protein coat?

Back

To protect the viral genetic material and help the virus attach to host cells.

Front

What is a host cell?

Back

A living cell in which a virus can replicate.

Front

What is the lytic cycle?

Back

A viral replication process that results in the destruction of the host cell.