Mitosis

Question 1

What are the phases of Mitosis?

Answer 1

1. Prophase
2. Prometaphase
3. Metaphase
4. Anaphase
5. Telophase
6. Cytokinesis

Question 2

What happens during prophase of mitosis?

Answer 2

Chromosomes condense and become visible, spindle fibers emerge from the centrosomes, the nuclear envelope breaks down and the nucleolus disappears.

Question 3

What happens during prometaphase of mitosis?

Answer 3

Chromosomes continue to condense, kinetochores appear at the centromeres, mitotic spindle microtubules attach to kinetochores, and centrosomes move toward opposite poles.

Question 4

What happens during metaphase of mitosis?

Answer 4

Mitotic spindle is fully developed, centrosomes are at opposite poles of the cell, chromosomes are lined up at the metaphase plate, each sister chromatid is attached to a spindle fiber originating from opposite poles.

Question 5

What happens during anaphase of mitosis?

Answer 5

Cohesin proteins binding the sister chromatids together begin to break down, the sister chromatids now called chromosomes) are pulled towards opposite poles and non-kinetochore spindle fibers lengthen, elongating the cell.

Question 6

What happens during telophase of mitosis?

Answer 6

Chromosomes arrive at opposite poles and begin to de-condense, the nuclear envelope material surrounds each set of chromosomes, and the mitotic spindle breaks down

Question 7

What happens during cytokinesis of mitosis?

Answer 7

Animal cells: a cleavage furrow separates the daughter cells

Plant cells: a cell plate separates the daughter cells