3. What is a chromosome? Contains Hereditary material Made of protein and DNA During Interphase they duplicate What is a Chromatid? Chromosomes that have duplicated Question 1

4. Steps of cell division Cell Cycle * Mitosis – 4 phases * Interphase – 1 phase * Cytokinesis – 1 phase

5. Types of nuclear division Mitosis – asexual reproduction Meiosis – sexual reproduction

6. Mitosis Produces two identical daughter cells Each daughter cell has the same kind and number of chromosomes as the original parent cell Nucleus divides in half Question 2

7. Interphase Chromosomes cannot be seen Chromosomes duplicate and double in number Contains 3 sub phases called G1, S,G2 Question 3/4

8. Prophase(Mitosis Begins) Chromosomes become visible Each chromosome consists of two identical chromatids chromatidscentromere nuclear membrane disappearing Centromere – holds chromatids together

9. Metaphase Chromosomes line up at the equator (middle of the cell) Spindles are formed to attach to the centromere of each chromosome

10. Anaphase chromatids separate as individual chromosomes They move apart towards the opposite sides chromosomes

11. Telophase Chromosomes gradually disappear Nuclear membrane is formed around each set of chromosomes nuclear membrane forming Cell pinches in

12. Cytokinesis Division of cytoplasm Animal cells : by formation of cleavage furrow cleavage furrow cell plate Plant cells : by formation of cell plate Two new cells

13. Interphase Animal cell Plant cell

14. Prophase Animal cell Plant cell

15. Metaphase Animal cell Plant cell

16. Anaphase Animal cell Plant cell

17. Telophase Animal cell Plant cell

18. Can you identify the different stages of Cell division from the diagram below? metaphase anaphase prophase interphase telophase 1 2 3 4 5

19. Which phase of the cell cycle is this cell in? 1. Interphase 2. metaphase

20. Go to next picture

21. Try Again

22. Which phase of mitosis in the cell in? 1. Telophase 2. Anaphase

23. Next Picture

24. Try again

25. Which phase is this cell in? 1. Prophase 2. Anaphase

28. What phase is this cell in? 1. Metaphase 2. Telophase

31. What phase is this in? 1. Anaphase 2. Metaphase.

34. Which picture shows the chromatids lining up in the middle. Click number to check yourself 1 2 3

35. Next Picture

36. Try again

37. Label the following pictures of Mitosis. Put answers on paper 1 2 3 4 click here click here When finished labeling click hereclick here

38. You have now completed the power point lesson on Mitosis Click one of the following to describe your understanding of Mitosis I get it I get some of itI get a little of it I’m kinda lostI have no Idea

39. Let’s see if you really do get it? Can you answer the following questions? Without any help 1.What is a chromosome 2.What is mitosis 3.What are the phases of mitosis If you can answer these then click hereclick here

40. Great you understand most of it but not all! What are you missing? Look at the following concepts and click the ones you are unsure of. 1. What is Mitosis 2. Stages of mitosis 3. What is a chromosomeWhat is a chromosome

41. You only understand a Little! Click here Click here to go back and review.

42. You need to review your notes some more and Click here

44. If you have all pictures labeled then click here

45. Check yourself! Did you get them right? 1 2 3 4 click here click here when done checking Metaphase Anaphase Telophase Prophase