Biology

AP BIOLOGY SEMESTER 1 EXAM REVIEW UNIT 1: MECHANISMS OF EVOLUTION Darwinian Evolution Evidence Paleontology, biogeography, embryology, comparative anatomy, homologous structures, analogous structures, vestigial structures, molecular biology, artificial selection Natural Selection Over-production of offspring, inherited variation, competition, adaptations, fitness, reproductive success of advantageous traits Stabilizing selection (human birth weight, extremes selected against - too small won?t survive, too big difficult birth), directional selection (pesticide resistance, peppered moth), disruptive selective (opposite of stabilizing), sexual selection (male competition, female choice)

Cell Organelle Research Websites Cells Alive http://www.cellsalive.com/cells/cell_model.htm Tour through plant and animal cell. Click on each organelle for structure and function The Virtual Cell http://www.ibiblio.org/virtualcell/tour/cell/cell.htm The Virtual Cell is an online Cell Biology textbook. It provides students with an interactive journey through the cell. Animal Cell Interactive http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP11403 Explore parts of an animal cell Interactive quiz Cell Structure and Parts http://www.wiley.com/legacy/college/boyer/0470003790/animations/cell_structure/cell_structure.htm Compare Prokaryotic, Animal and Plant cell parts

PERIOD 4 Case 1: Ideal H-W ? Surviving Genotypes ? AA Aa aa Parental ? 22 ? F1 4 14 4 F2 8 9 5 F3 8 12 2 F4 7 14 1 F5 10 7 5 Freq. of genotypes Freq. of alleles Gen. # p2 (AA) 2pq (Aa) q2 (aa) p (A) q (a) Parental (H-W hypo.) F5 (H-W hypo) F5 (actual) Case 2: Selection against Homozygous Recessive ? Surviving Genotypes ? AA Aa aa Parental ? 22 ? F1 8 14 0 F2 15 7 0 F3 15 7 0 F4 13 9 0 F5 12 10 0 Freq. of genotypes Freq. of alleles Gen. # p2 (AA) 2pq (Aa) q2 (aa) p (A) q (a) Parental (H-W hypo.) F5 (H-W hypo) F5 (actual) Case 3: Heterozygous Advantage ? Surviving Genotypes ?