The cell cycle

Question 1

Your chances of getting cancer depend on

Answer 1

Your Genes
* Life Style
* Luck

Question 2

What controls mitosis?

Answer 2

The cell cycle or cell-division cycle

Question 3

What is the cell cycle or cell division cycle?

Answer 3

series of events that take place in a cell leading to division and duplication of its DNA (DNA
replication) to produce two daughter cells.

Question 4

Which part of the cell cycle are a part of interphase?

Answer 4

G1,
S,
G2 phases

Question 5

How many distinct phases does the cell cycle have?

Answer 5

4.
G1
S
G2
Mitosis

Question 6

The G0 phase is when

Answer 6

Cells that have temporarily or reversibly stopped dividing are said to have
entered a state of quiescence (inactivity or dormancy)

Question 7

predict which phase(s) of the cell cycle is
the shortest

Answer 7

Mitosis and cytokinesis

Question 8

How long does the G1, S, G2, and M phases last?

Answer 8

-the G1 phase might last about 11 hours,
- S phase about 8 hours,
- G2
about 4 hours, and
- M about 1 hour.

Question 9

What is a checkpoint?

Answer 9

one of several points in the eukaryotic cell cycle at
which the progression of a cell to the next stage in the cycle can be
halted until conditions are favorable

Question 10

Damage to DNA and other external factors are evaluated at the______ if conditions are inadequate, the cell will not be allowed to
continue to the S phase of interphase

Answer 10

G1 checkpoint

Question 11

What happens at the G2 checkpoint?

Answer 11

The G2 checkpoint ensures all of the chromosomes have been replicated and
that the replicated DNA is not damaged before cell enters mitosis.

Question 12

This checkpoint determines whether all the sister chromatids
are correctly
attached to the spindle microtubules before the cell enters the irreversible
anaphase stage

Answer 12

M checkpoint