Mitosis

Question 1

What are the 4 stages of mitosis in order?

Answer 1

• Prophase
• Metaphase
• Anaphase
• Telophase
  (Remember: PMAT)

Question 2

What is mitosis?

Answer 2

Process of nuclear division by which two genetically identical daughter cells are produced which are also genetically identical to the parent cell nucleus.

Question 3

What happens during prophase?

Answer 3

-Nuclear envelope breaks down and subsequently disappears.
-The chromosomes condense
-The centrioles move to opposite poles of the cell for the purpose of spindle formation.

Question 4

What happens during metaphase?

Answer 4

• The chromosomes move to the equator and attach to the spindle fibres via centromeres.

Question 5

What happens during anaphase?

Answer 5

-The sister chromatids separate at the centromere (the centromere divides in two) and are pulled to opposite poles by spindle fibres.

Question 6

What happens during telophase?

Answer 6

-The nuclear envelope reforms, creating two daughter cells.
-The spindle is
broken down and subsequently disappears.
- The chromosomes uncoil.

Question 7

What processes is mitosis fundamental to?

Answer 7

-Growth of multicellular organisms
-Replacement of cells and repairment of tissues
-Asexual reproduction