Stages Of Mitosis

Question 1

Interphase

Answer 1

• chromosomes are extended and not visible
• cell is busy making proteins
• chromosomes replicate
• centrioles replicate
• nuclear envelope is still present
• nucleolus is still visible

Question 2

Prophase

Answer 2

• chromosomes condense
• nucleolus disappears
• nuclear envelope begins to break down
• spindle apparatus composed of spindle fibres forms
• centrioles migrate to opposite poles

Question 3

Metaphase

Answer 3

• nuclear membrane has broken down
• chromosomes align in the equator of the cell
• each chromosome is attached to a spindle fibre by its centromere

Question 4

Anaphase

Answer 4

• centromere of each chromosome splits
• one chromatid from each chromosome moves to centrioles at the poles of the cell
• the chromatids which are now separate, are now called chromosomes

Question 5

Telophase

Answer 5

• nuclear membranes reform around each group of newly divided chromosomes
• nucleolus reforms
• spindles disappear
• chromosomes extend, becoming invisible

Question 6

Cytokinesis

Answer 6

• not technically part of mitosis
• cell physically splits
• two identical daughter cells