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Name _________________________ Period ______ Date ___________________
Online ASSIGNMENT: MITOSIS
A eukaryotic cell typically has a great deal of genetic material. For example, if the DNA of a
human cell were uncoiled and lined end to end, it would extend approximately two meters! The
genetic material is replicated before cell division and then must be divided equally between
daughter cells. In mitosis, which is division of the nucleus, the chromosomes condense into bodies small enough to
travel efficiently in the cell. At the end of mitosis, the chromosome shave been separated into two new nuclei. These
nuclei become part of the daughter cells that are genetically identical to each other and to the original parent cell .
Interphase
Step 1
1. What happens to the chromosomes in the box on the left? _______________________________
2. This occurs during which of the three phases of Interphase? _____________________________
Step 2
3. What happens to the centrosomes? ________________________________________________
4. What stage of Interphase do organelles replicate? _____________________________________
Step 3
5. What do the chromosomes look like at the end of Interphase? ____________________________
6. During which stage and phase of the cell cycle do the chromosomes condense? ___________(stage)
and _______________ (phase)
Mitosis: Prophase
Step 4
1. What is happening to the nuclear envelope or nuclear membrane? __________________________
2. Where are the centrioles (with spindle fibers attached) moving? ___________________________
Mitosis: Metaphase
Step 5
3. How have the chromosomes changed in this phase? _____________________________________
4. What connects the centriole and the chromosomes? ____________________________________
Mitosis: Anaphase
Step 6
5. What happened to the chromosomes in this phase? _____________________________________
6. Where are the chromosomes located? ______________________________________________
Mitosis: Telophase
Step 7
7. What is the cell membrane doing? _________________________________________________
8. What is the nuclear envelope or nuclear membrane doing? ________________________________
Cytokinesis
9. What happens during Cytokinesis? _________________________________________________
10. How many cells are present? _____________________________________________________
Conclusion Questions
11. Would all the cells be an exact copy of the original? ____________________________________
12. What is the purpose of Cell Division? _______________________________________________
___________________________________________________________________________
And finally, take the quiz! What is your score? ______________