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Question 1

What happens to chromosomes during Prophase?

Answer 1

Chromosomes condense and become visible

The nuclear envelope breaks down and the nucleolus disappears.

Question 2

What emerges from the centrosomes during Prophase?

Answer 2

Spindle fibers emerge

This is a crucial step in mitosis as it prepares the cell for chromosome movement.

Question 3

What key event occurs during Prometaphase?

Answer 3

Kinetochores appear at the centromeres

Mitotic spindle microtubules attach to kinetochores.

Question 4

What is the status of centrosomes during Prometaphase?

Answer 4

Centrosomes move toward opposite poles

This movement is essential for the proper alignment of chromosomes.

Question 5

Describe the arrangement of chromosomes during Metaphase.

Answer 5

Chromosomes are lined up at the metaphase plate

Each sister chromatid is attached to a spindle fiber originating from opposite poles.

Question 6

What occurs to cohesin proteins during Anaphase?

Answer 6

Cohesin proteins binding the sister chromatids break down

This allows sister chromatids to be pulled toward opposite poles.

Question 7

What happens to the cell during Anaphase?

Answer 7

Sister chromatids are pulled toward opposite poles and non-kinetochore spindle fibers lengthen, elongating the cell

This elongation is important for separating the daughter cells.

Question 8

What occurs during Telophase?

Answer 8

Chromosomes arrive at opposite poles and begin to decondense

Material surrounds each set of chromosomes and the mitotic spindle breaks down.

Question 9

What is the difference in cytokinesis between animal and plant cells?

Answer 9

Animal cells form a cleavage furrow; plant cells form a cell plate

This is how daughter cells are separated after mitosis.

Question 10

Fill in the blank: During Metaphase, the mitotic spindle is fully developed and ______.

Answer 10

centrosomes are at opposite poles of the cell