Topic 2- Binary fission

Question 1

What is binary fission?

Answer 1

The process of cell division in prokaryotic cells

Question 2

What structures do prokaryotic cells not have, they don’t allow for mitosis

Answer 2

-A nucleus
-Chromosomes
-Membrane-bound organelles
-Spindle fibres

Question 3

How is DNA stored in prokaryotic cells?

Answer 3

single, circular DNA molecule and plasmids

Question 4

Are plasmids replicated and inherited?

Answer 4

Yes

Question 5

What is the process of binary fission?

Answer 5

-The single, circular DNA molecule undergoes DNA replication
-Any plasmids present undergo DNA replication
-The parent cell divides into two cells, with the cytoplasm roughly halved between the two daughter cells
-The two daughter cells each contain a single copy of the circular DNA molecule and a variable number of plasmids

Question 6

What happens if a daughter cell does not receive a single circular DNA molecule or at least one copy of a plasmid?

Answer 6

They die