Viruses & Viral Replication

A retrovirus is different from other viruses because retroviruses have __________ at their core.

• RNA and Reverse Transcriptase Enzymes
• RNA and Transcriptase Enzymes
• DNA and Reverse Transcriptase Enzymes
• DNA and Transcriptase Enzymes

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.

Needs host cell to reproduce.

• Virus
• Bacteria
• Fungus
• Protozoan

What is the 1st step of virus infection?

• Entry
• Attachment
• Replication
• Assembly

This infectious viral disease has many symptoms, from chills, fever, and aching muscles to coughing and sneezing to nausea and vomiting. The symptoms show up within 2-7 days after the cell is infected.  This is an example of?

• Lytic Cycle
• Lysogenic Cycle
• Meiosis

What happens in the lytic cyle?

• Virus goes in and leaves the host cell
• Virus quickly kills the host cell
• Virus sleeps inside of the host cell
• Virus stay dormant for a long time

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

The lytic cycle takes the longest out of the two viral reproductive cycles. 

• True
• False

What do viruses need to reproduce?

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

Why do viruses have projections on the outside?

• To send signals to other viruses.

• To maintain their structure.

• To attach to the host cell.

• To reproduce.