Mitosis

Question 1

What are the four stages of mitosis?

Answer 1

Prophase, Metaphase, Anaphase, and Telophase

Question 2

What acronym can help us remember the four stages of mitosis?

Answer 2

PMAT (Prophase, Metaphase, Anaphase, and Telophase)

Question 3

What happens during early prophase?

Answer 3

1. The chromosomes coil, double in length and become distinct
2. The nucleolus disappears
3. The centrioles separate and move to opposite ends of the cell, beginning to form a spindle of microtubules as they go

Question 4

What happens during late prophase?

Answer 4

1. The nuclear membrance fragments
2. The spindle of microtubules begins to form
3. The centrioles are now on opposite sides of the cell

Question 5

What happens during metaphase?

Answer 5

The spindle fibers push and pull the chromosomes until they are lined up in the middle of the cell

Question 6

What happens during anaphase?

Answer 6

The centromeres (the things that hold the two chromatids together to from a chromosome) divide and the chromatids move to opposite sides of the cell because the microtubules have shortened and pull them apart.

Question 7

What does the cell look like after anaphase?

Answer 7

Both ends of the cell have equivalent and complete sets of chromosomes

Question 8

What happens during telophase?

Answer 8

1. The nuclear membrane begins to reform
2. The nucleolus reforms
3. The cell begins to pinch in, forming a cleavage furrow