Mitosis

Question 1

What is Mitosis

Answer 1

The process of cell division

Question 2

what do single celled organisms use mitosis for?

Answer 2

to reproduce

Question 3

what do multicellular organisms use mitosis for?

Answer 3

to repair damaged tissue and for growth

Question 4

what is the meaning of diploid?

Answer 4

means the cells have two matching sets of chromosomes

Question 5

stage 1 of mitosis

Answer 5

chromosomes are long and not visible. DNA is copied exactly by a process called replication.

Question 6

Stage 2 of Mitosis

Answer 6

Chromosomes shorten and thicken to become visible. Spindle fibres form in the cytoplasm. Nuclear membrane breaks down.

Question 7

Stage 3 of Mitosis

Answer 7

Spindle fibres line chromosomes up along the equator of the cell

Question 8

Stage 4 of Mitosis

Answer 8

Spindle fibres pull chromatids apart. Chromosomes are pulled to opposite poles of the cell.

Question 9

Stage 5 of Mitosis

Answer 9

New nuclear membranes form around the two sets of chromosomes. Cytoplasm splits to form two new cells.

Question 10

Why is it important to make sure that the diploid chromosome complement is maintained in the new cells

Answer 10

so the new cells contain all the genetic information needed to function correctly.