7.1 cell cycle Flashcards
1
Q
What are the cell cycle phases in order?
A
G1
S
G2
M
2
Q
What happens during G1 phase?
A
The cell increases in size and prepares to replicate.
3
Q
What happens during S phase?
A
The cell replicates it’s DNA. Two sets of chromosomes.
4
Q
What happens during G2 phase?
A
Continued growth and preparation for division.
5
Q
What happens during M phase?
A
The cell divides into two daughter cells.
6
Q
what is a checkpoint in the cell cycle?
A
A checkpoint checks for damage and sees if the cell is ready for the next phase.
7
Q
What is the G0 phase?
A
If the cell is damaged or has insufficient resources it goes into a resting phase.
8
Q
What are Inhibitory Proteins?
A
Turns enzymes off
9
Q
What are stimulating proteins?
A
Starts enzymes
10
Q
What is an example of a tumor suppressor gene?
A
p53
