1. AP Lab 3 Mitosis and Meiosis

2. Review: Mitosis and the cell cycle
Phases
G1, S, G2
Parts of microscope and troubleshooting!

3. Lab Tips! Complete 3A on your own. For 3A2, work in partnerships.
One person calls out phases, the other records in Table 3.1
COUNT A MINIMUM OF 200 CELLS!
Onion Root Tips: look at the apical meristem!

6. Quick Review: What is the goal of meiosis?
What are the phases and actions in the phases?
What is crossing over?
What is the result
of crossing over?

7. each chromosome duplicating during interphase
germ cell
germ cell
each chromosome duplicating during interphase n
MEIOSIS I
separation of homologues
MEIOSIS II
separation of sister chromatids
gametes
gametes 2n
diploid number restored at fertilization
zygote
Fig , p. 172

8. Sordaria ascospores
Sordaria ascospore images from

14. Debrief:
Any questions on main concepts?
Mitosis
Meiosis
Gametogenesis

15. Mitosis Findings: Which phase dominated?
Any questions on analysis questions?

16. Meiosis Findings:
Any questions on analysis questions?