Binary fission and Virus replication

Question 1

Designed for which cells?

Answer 1

Prokaryotic cells

Question 2

What occurs during the first stage of Binary fission?

Answer 2

• Circular DNA molecule replicates

- Plasmids replicate

Question 3

What occurs in the second stage of binary fission?

Answer 3

• Plasma membrane between the poles begins to grow

Question 4

What occurs during the third stage of binary fission?

Answer 4

• Pinching at the cell equator

Question 5

What occurs during the fourth stage of binary fission?

Answer 5

• A new cell wall forms between the two DNA molecules
• The number of plasmids per cell may vary as they don’t attach to the cell membrane so there’s no guarantee they’ll distribute evenly

Question 6

What is a virus?

Answer 6

• A non-living parasite
• not a cell
• replicates, doesn’t divide

Question 7

How do viruses replicate?

Answer 7

• Attach to cell walls with attachment proteins
• insert genetic material (DNA, RNA) into the host cell
• host cell replicates viral genetic material
• these assemble into particles are released