Virus Life Cycles

Question 0

What is an example of a virus that uses the Lytic Cycle?

Answer 0

Influenza (flu)

(Ex. H1N1, Bird Flu/Avian Flu, Spanish Flu)

Question 1

What are the steps of the Lytic Cycle?

Answer 1

1. Attachment- Virus attaches to bacteria
2. Injection- Virus injects DNA into bacteria
3. Mass production- Virus forces bacteria to produce virus proteins
4. Assembly- Virus parts assemble in bacteria
5. Lysis- Cell breaks open and lets out viruses

Question 2

What are the steps of the Lysogenic Cycle?

Answer 2

1. Attachment- Virus attaches itself to bacteria
2. Injection- Virus injects its DNA into bacteria
3. Virus DNA becomes part of bacteria DNA and lies dormant
4. As bacteria cell divides, virus DNA multiplies
5. Mass Production- Virus forces bacteria to produce virus parts
6. Cell lyses and mass invasion of virus begins

Question 3

What is an example of a virus that follows the Lysogenic Cycle?

Answer 3

HIV= Human Immunodeficiency Virus