It's the phases of the mitosis cycle.
1. metaphase
2. prophase
3. cytokenesis
4. interphase
5. interphase
6. interphase
7. anaphase
8. interphase
9. cytokenesis
10. metaphase
11. interphase
12. interphase
13. interphase
x
14. interphase
15. prophase
16. interphase
17. metaphase
18. anaphase
19. interphase
20. interphase
21. prophase
22. interphase
I'm pretty sure that these are correct.
