Binary Fission

Question 1

What is binary fission ?

Answer 1

• Where the cell splits into two pices

Question 2

What is the set order of mitosis ?

Answer 2

• DNA Replicates
• Chromosomes line up along the equator/centre of the cell
• The chromosomes spilt equally and go to opposite POLES of the cell
• The cell splits at the cytoplasm and cell membrane
• 2 identical daughter cells have been produced

Question 3

How do prokaryotic cells replicate ?

Answer 3

Through binary fission (Similar to mitosis)

Question 4

Binary fission steps

Answer 4

• The circular DNA and Plasmid(s) replicate
• The cell grows in size and ONLY the DNA moves to opposite poles of the cell
• The cytoplasm decides and new cell was begin to form
• The cytoplasm decides and two identical daughter cells are produced. (Each daughter cell has one copy of the circular DNA but can have variable amounts of plasmid(s)

Question 5

What is the mean devision time ?

Answer 5

• The average amount of time it takes for one bacterial cell to decide into two.
• (If you know the mean devision time you can work out HOW MANY times it has decided in a SET GIVEN TIME)