1. Topic: Reproduction Aim: Describe the process of fertilization. Do Now: Label female reproductive system pictures from yesterday’s notes. HW: Embryonic Development Reading Notes CL Mitosis and Asexual repro due Tuesday, February 24 th.

2. Centromere Chromatids A B 1.Identify the structure in the diagram. 2.Identify the phase of mitosis where this structure produced. 3.Identify structures A and B.

3. Ovary Oviduct Uterus Urinary bladder Vagina

4. Oviduct Ovary Uterus Cervix Vagina

5. 1. Describe the process of fertilization. http://www.youtube.com/watch?v=9MnQxiSJZ4Q

6. Process of a sperm joining an egg cell.

7. Upper portion of oviduct. 2. Where does fertilization usually occur?

10. 23 3. Identify the number of chromosomes found in female and male gametes. SpermEgg 23

11. Zygote 4. Identify another name for a fertilized egg. Sperm + Egg Zygote

12. 46 5. How many chromosomes are found in a human zygote? Sperm + Egg Zygote 23 46

14. Identical Twins

16. External Fertilization Egg fertilized outside female body Aquatic organisms (fish)

17. Large # of eggs and sperm released increases chance of fertilization

20. Coral: release egg & sperm at the same time

21. Internal Fertilization Fertilization inside female Terrestrial (land) organisms

22. Fewer eggs needed bc well protected

23. Let’s summarize… 1.Explain what occurs during the process of fertilization. 2.In humans, where does fertilization occur? 3.Explain TWO differences between external and internal fertilization.

24. 1.Sperm cells and egg cells are which type of cells? 2.Identify the type of cell division that is used to produce these cells. 3.Where are these cells produced? 4.In humans, how many chromosomes are found in each of these cells?

25. 1.Identify all labeled structures in the diagram. 2.Identify the structure where the embryo develops. 3.Where can an egg be fertilized? 4.Which structure releases eggs? 5.Identify the hormones structure A secretes.

26. Centromere Chromatids

27. 1.Identify the process represented in the diagram above. 2. Explain how this process is different from animal cell mitosis. 3. When does chromosome replication occur? 5. When are the chromatids pulled apart and begin moving to opposite poles? 4. Where is cytokinesis occurring? Explain this process. If the first cell is made up of 32 chromosomes, how many chromosomes are found in the daughter cells? C B A DE