The first part of our biology unit.

1. io gyka
lo nyi
1 B
0 ol of Tanga
de
a ional SchKremer
Gr ernat
o
Mr
In t

2. Reproduction: Key concepts
• Asexual + sexual reproduction + examples
• Mitosis + IPMAT
• Meiosis + IPMAT x2
• Sources of genetic variation

3. Mitosis

4. Mitosis + the
Cell Cycle
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

5. Mitosis + the
Cell Cycle
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

6. Mitosis + the
Cell Cycle
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

7. Mitosis + the
Cell Cycle
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

8. Mitosis + the
Cell Cycle
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

9. Meiosis

10. Meiosis +
Variation
Interphase as normal
2 divisions
Crossing over
Haploid gametes
Recombination

11. Meiosis +
Variation
Prophase 1
Crossing over

12. Meiosis +
Variation
Prophase 1
Crossing over

13. Meiosis +
Variation
Metaphase 1

14. Meiosis +
Variation
Anaphase 1

15. Meiosis +
Variation
Telophase 1
(sometimes followed by
interphase,
but not always)

16. Meiosis +
Variation
Prophase 2
NO crossing over!

17. Meiosis +
Variation
Metaphase 2

18. Meiosis +
Variation
Anaphase 2

19. Meiosis +
Variation
Telophase 2
Produces 4
haploid gametes

20. Mitosis vs Meiosis
Mitosis Meiosis
•single division •2 division processes
•brief prophase - no crossing over •lengthy prophase includes crossing
•produces 2 diploid daughter cells over - more variation
•diploid daughter cells genetically •produces 4 haploid gametes
same as parent cell •gametes not genetically identical to
parent cell

21. Sources of Variation

22. Sources of
Variation
Mutation
Recombination
Crossing Over
Image: www.beltina.org

23. Sources of
Variation
Mutation
Recombination
Crossing Over

24. Sources of
Variation
Mutation
Recombination
Crossing Over