Viruses

What part of a virus is the protein capsule that houses the genetic material (DNA/RNA)?

• tail
• nucleus
• capsid
• glycoprotein

Which viral life cycle allows viral genetic material to lay dormant while the host cell reproduces?

• lytic
• mitosis
• lysogenic
• S phase

What is a way to become immune to a disease without first having the disease?

• antibiotics
• Anti-retroviral drugs
• Vaccinations
• Exposure Therapies

What do viruses need to reproduce?

• they need genetic material
• They need a host cell
• They need  bacteria
• They need insulin

What is the purpose of surface marker on a virus

• As defense.
• They provide structural support.
• To allow the virus to move.
• To attach to the host cell.

Reasons that viruses are considered to be nonliving is because

• They are not cellular
• They cannot reproduce on their own
• They cannot make proteins
• all of the above

How do viruses reproduce?

• They copy their own genetic material inside a protein coat.
• They kill a cell and reproduce inside it.
• They invade a living cell and use the cell's functions to replicate their genetic material.
• They do not reproduce because they are not technically living things.

What is one way that a lysogenic infection differs from a lytic infection?

• A lysogenic virus does not act on bacteria as a lytic virus does.
• A lysogenic virus can remain in the host DNA for a longer period without becoming active.
• A lysogenic virus contains RNA instead of DNA.
• A lysogenic virus directs the production of new viruses right away.

Viruses are exceptions to the cell theory, but they have some characteristics of living things. What is one of these characteristics?

• they contain chlorophyll
• they reproduce by mitosis
• they contain genetic material
• they are made up of many specialized cells

What is the lytic and lysogenic cycle have in common?

• The host cell dies
• The virus dies
• The virus inserts its genetic information into the host cell
• copies of the virus are immediately released from the host