Mitosis

Question 1

How many rounds of division in mitosis?

Answer 1

1 round of division

Question 2

Are genetically identical or varied cells made?

Answer 2

Genetically identical

Question 3

Are diploid or haploid cells made?

Answer 3

Diploid

Question 4

What is mitosis used for?

Answer 4

Growth and repair e.g. clonal expansion of B cells

Question 5

4 key stages of mitosis?

Answer 5

Prophase
Metaphase
Anaphase
Telophase

Question 6

What happens during prophase?

Answer 6

The chromosomes condense and become visible
The nuclear membrane breaks down
The centrioles create spindle fibres which form between poles of the cell

Question 7

What happens during metaphase?

Answer 7

The chromosomes align along the equator of the cell
The spindle fibres released from the poles now attach to the centromere and chromatid

Question 8

What happens during anaphase?

Answer 8

The spindle fibres pull the centromere and chromatids towards the opposite poles
The centromere divides into two and the individual chromatids are pulled to each individual pole

Question 9

What happens during telophase?

Answer 9

The chromosomes become longer and thinner again
The spindle fibres disintegrate and the nuclear membrane reforms
The chromosomes uncoil, making them no longer visible