Modeling Mitosis Activity 1. ?
2. ?
3. Inthediagram(right),.
4. ?
Modeling mitosis
a. Inlateinterphase(step2onyourboard), theamountofDNAdoubles. Thatmeanseachchromosome now doubles. Select a matching pipe cleaner (same length and color) for each chromosome and slide both through a piece of cereal. You now should have a set of eight doubled chromosomes arranged in homologous pairs.
b. on your board.

Applying your knowledge
Fill in Table 1 with the correct information.
Step
Number of cells
Number of chromosomes in each nucleus
Number of homologous pairs in each nucleus
Interphase Cytokinesis
Table 1: Cell cycle and mitosis in fruit flies
.. . 0.
11. What is the purpose of mitosis? (3 points)
A diploid set of human chromosomes contains 23 homologous pairs (46 chromosomes). Fill in Table 2 with the correction information regarding human body cells.
Step
Number of cells
Number of chromosomes in
each nucleus
Number of homologous pairs in each nucleus
Interphase Cytokinesis
Table 2: Cell cycle and mitosis in humans
12. 13. 14. 15. 16. 17.
18. Why is it necessary to double the amount of genetic material before mitosis begins? (3 points)
19. The two daughter cells end up with an exact copy of the genetic material from the parent cell. How does your simulation support this statement? (3 points)