Topic 2 (Mitosis)

Question 1

Why is mitosis used?

Answer 1

used to grow or to replace cells that have been damaged

Question 2

What happens in interphase?

Answer 2

Increases the metal sub cellular structures such as mitochondria and ribosomes. It then duplicates its DNA. The DNA is copied and forms
X-shaped chromosome each chromosome is an exact duplicate of the other.

Question 3

What happens in prophase?

Answer 3

The chromosomes condense and the membrane around the nucleus breaks down and the chromosomes lie free in the cytoplasm

Question 4

What happens in metaphase?

Answer 4

The chromosomes line up at the centre of the cell

Question 5

What happens at anaphase?

Answer 5

Spindle fibres pull the chromosomes apart then the chromatids are pulled to opposite ends of the cell.

Question 6

What happens in telophase?

Answer 6

Membranes form around each of the set of chromosomes, these become the nuclei of the two new cells - the nucleus has divided.

Question 7

What happens in cytokinesis?

Answer 7

The cytoplasm in the cell membrane divide to form two separate cells.

Question 8

What does produced at the end of mitosis?

Answer 8

To genetically identical daughter cells which are diploid cells.