AP Biology – Review for 2.E & Mitosis/Meiosis Test on Friday, 12/4/15
Short- day vs. long-day plants
Phototropism
Innate vs. learned behaviors
Seed germination  taking in H
2
O, turgor pressure
Quorum sensing in bacteria  gene expression
Proximate causation vs. ultimate causation
Mitosis checkpoints
Cancer cells
Cell cycle order & what occurs in each phase: Interphase (G
1
, S, G
2
), Prometaphase, Prophase,
Metaphase, Anaphase, Telophase, Cytokinesis
Role of: kinetochores, microtubules, motor proteins, actin filaments
Regulation of cell cycle: MPF & CDKs in checkpoint
Contact inhibition
Hormones; growth factor control
Abnormal regulation of cell cycle?  uncontrolled cell growth (cancer), apoptosis, non-disjunction
Calculation of gene-to-centromere distance (map units)  look at the last page of your Virtual
Lab, #5 & #6 on the front of that page & #4 on the back of that page
Meiosis  starts with a diploid cell & produces haploid cells (reduces the chromosome #), egg cell (haploid gamete) + sperm cell (haploid gamete) = diploid zygote
Advantage of sexual reproduction  produces genetic variation!
There is no genetic variation in asexual reproduction!