Mitosis

Question 1

What does mitosis cause?

Answer 1

Asexual reproduction
Growth
Tissue repair

Question 2

What are the four main stages of mitosis?

Answer 2

Prophase
Metaphase
Anaphase
Telophase

Question 3

What happens during prophase?

Answer 3

The chromosomes shorten and thicken as DNA supercoils
The nuclear envelope breaks down
The centrioles divide and separate to the two poles of the cell
Cytoskeleton protein threads form a spindle between these centrioles

Question 4

What happens during metaphase?

Answer 4

The pair of chromatids attach to the spindle threads at the equator region
The spindles attach to the chromatids centromeres

Question 5

What happens during anaphase?

Answer 5

The centromere of each pair of chromatids splits
Motor proteins pull the chromosomes to opposite ends of poles
Because their centromere goes first they form a V shape

Question 6

What happens during telophase?

Answer 6

Separated chromosomes reach the poles
A new nuclear envelope forms
The cell now contains two nuclei each genetically identical to the other

Question 7

What is cytokinesis?

Answer 7

Division of the cytoplasm of a cell following mitosis

Question 8

What happens during cytokinesis of a plant cell?

Answer 8

An end plate forms where the equator of the spindle was, as new plasma membrane and cellulose cell walk material are laid down on either side along this end plate