3.10 - Mitosis and the cell cycle

Question 1

What is the role of mitosis?

Answer 1

Produces genetically identical cells
Used for cell growth, repair and asexual reproduction

Question 2

What are the three phases in the cell cycle?

Answer 2

Interphase
Nuclear divivsion
Cell division

Question 3

What are the phases in interphase?

Answer 3

G1 Phase
S Phase
G2 Phase

Question 4

What is the G1 phase known for?

Answer 4

Cell growth

Question 5

What is the S phase known for?

Answer 5

DNA Replication

Question 6

What is the G2 phase known for?

Answer 6

Preperation of mitosis

Question 7

What is the phases after interphase?

Answer 7

M Phase

Question 8

In mitosis, what happens in interphase?

Answer 8

Includes G1, S & G2 where DNA is replicated where each chromosome consists of two sister chromatids

Question 9

In Mitosis, what happens in early prophase?

Answer 9

Chromatin condenses into visible chromosomes.
Centrosomes (containing a pair of
centrioles) are present and move to opposite poles of the cell

Question 10

In Mitosis, what happens in late prophase?

Answer 10

The nuclear envelope disintegrates.
Chromosomes consist of two
identical chromatids joined by a
centromere
Centrioles in the centrosomes,
develop spindle fibres that move towards the nucleus.
Nucleolus disappears

Question 11

In Mitosis,