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Theoretical A

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Theoretical A Exam Official Answer Key & Worked Solutions
Q1 Wee1/Cdc25 Feedback Control of M-Cdk Activity Cell Signaling & Communication IBO·2016·Q1 — ptsPDF
Q2 Estimating Translation Rate from a TMV Protein Pulse-Chase Gel Translation & the Genetic Code IBO·2016·Q2 — ptsPDF
Q3 Ordering a Proline Biosynthesis Pathway by Cross-Feeding Gene Regulation: Prokaryotic IBO·2016·Q3 — ptsPDF
Q4 Uncouplers and Inhibitors of Oxidative Phosphorylation Bioenergetics & Central Metabolism Overview IBO·2016·Q4 — ptsPDF
Q5 Mapping Membrane-Protein Topology with Protease Protection Plasma Membrane Structure & Transport IBO·2016·Q5 — ptsPDF
Q6 Desaturase Identity and Ethanol Tolerance in Yeast Lipids & Membrane Biochemistry IBO·2016·Q6 — ptsPDF
Q7 Feedback Regulation of the PHB Synthesis Pathway Bioenergetics & Central Metabolism Overview IBO·2016·Q7 — ptsPDF
Q8 Identifying Amino Acids from Peptide Mass Data Amino Acids & Protein Chemistry Fundamentals IBO·2016·Q8 — ptsPDF
Q9 Screening Shrimp Gut Bacteria for Probiotic Potential Against Vibrio Immune Physiology IBO·2016·Q9 — ptsPDF
Q10 Timing Cell-Cycle Phases with a Thymidine Pulse-Chase Cell Cycle, Mitosis & Meiosis IBO·2016·Q10 — ptsPDF
Q11 Cell Wall Elasticity and the Components of Water Potential Water Transport & Transpiration IBO·2016·Q11 — ptsPDF
Q12 C3 vs C4 Photosynthetic Response to Low Temperature Calvin Cycle, Photorespiration & C4/CAM Biochemistry IBO·2016·Q12 — ptsPDF
Q13 A dme Mutant and Nitrogen Fixation in Soybean Root Nodules Mineral Nutrition & Nutrient Uptake IBO·2016·Q13 — ptsPDF
Q14 Symplastic vs Apoplastic Phloem Loading of Sucrose Phloem Transport & Translocation IBO·2016·Q14 — ptsPDF
Q15 Structural Changes Along Rhizophore Orders in Rhizophora mangle Stem Anatomy IBO·2016·Q15 — ptsPDF
Q16 Arsenic Accumulation and Growth in Athyrium yokoscense Mineral Nutrition & Nutrient Uptake IBO·2016·Q16 — ptsPDF
Q17 ABA and Ethephon Effects on Sweet Cherry Ripening Plant Hormones IBO·2016·Q17 — ptsPDF
Q18 Reading a Pressure-Volume Loop of the Cardiac Cycle Cardiovascular Physiology IBO·2016·Q18 — ptsPDF
Q19 Cardiac Output and Oxygen Delivery During Exercise (Fick Principle) Cardiovascular Physiology IBO·2016·Q19 — ptsPDF
Q20 Four Congenital Heart Defects and Their Hemodynamic Consequences Cardiovascular Physiology IBO·2016·Q20 — ptsPDF
Q21 Ventilation Rate vs Tidal Volume During Graded Exercise Respiratory Physiology IBO·2016·Q21 — ptsPDF
Q22 Predicting Action Potential Changes from Altered Ion Conditions Nervous System Physiology IBO·2016·Q22 — ptsPDF
Q23 Phlorizin, SGLT2 Inhibition, and Diabetic Mouse Kidney Physiology Homeostasis & Osmoregulation IBO·2016·Q23 — ptsPDF
Q24 Hormonal Features of Polycystic Ovarian Syndrome Endocrine System Physiology IBO·2016·Q24 — ptsPDF
Q25 Ion Transport Across the Freshwater Fish Gill Epithelium Comparative Osmoregulation & Excretion IBO·2016·Q25 — ptsPDF
Q26 Water Loading and Renal Handling in Two Groups of Students Homeostasis & Osmoregulation IBO·2016·Q26 — ptsPDF
Q27 Thermal Metabolic Profiles of Five Animal Species Comparative Thermoregulation IBO·2016·Q27 — ptsPDF
Q28 BDNF, β-AR Signaling, and Brown Fat Thermogenesis Endocrine System Physiology IBO·2016·Q28 — ptsPDF
Q29 Muscle Fiber-Type Gene Expression Across Three Human Leg Muscles Muscle Physiology IBO·2016·Q29 — ptsPDF
Q30 Localizing an Insulin-Signaling Defect from Binding and Glucose-Clearance Tests Endocrine System Physiology IBO·2016·Q30 — ptsPDF
Q31 Mapping Bulbul Territory Size from Playback Response Data Aggression, Territoriality & Social Structure IBO·2016·Q31 — ptsPDF
Q32 Reciprocal Altruism in Blood-Sharing Vampire Bats Kin Selection, Altruism & Eusociality IBO·2016·Q32 — ptsPDF
Q33 Complementation and Dominance in lac Operon Merodiploids Gene Regulation: Prokaryotic IBO·2016·Q33 — ptsPDF
Q34 Assigning Anonymous DNA Samples to Three Families by STR Profiling Pedigree Analysis & Human Genetic Disorders IBO·2016·Q34 — ptsPDF
Q35 Classifying Crossover Events from Linear Tetrad Data Linkage, Recombination & Genetic Mapping IBO·2016·Q35 — ptsPDF
Q36 Broad- vs Narrow-Sense Heritability and a Bean Seed-Weight Calculation Quantitative Genetics, Heritability & Inbreeding IBO·2016·Q36 — ptsPDF
Q37 Long-Term Selection Response and Its Limits in Tribolium Body Size Quantitative Genetics, Heritability & Inbreeding IBO·2016·Q37 — ptsPDF
Q38 Inferring Chromosomal Rearrangements from Post-Fertilization Embryo Loss Chromosomal Variation: Number & Structure IBO·2016·Q38 — ptsPDF
Q39 Factors That Speed Up or Slow Down Speciation Speciation & Reproductive Isolation IBO·2016·Q39 — ptsPDF
Q40 Reconstructing Codon 38 of Tryptophan Synthetase from Revertant Analysis Translation & the Genetic Code IBO·2016·Q40 — ptsPDF
Q41 Applying Hardy-Weinberg Equilibrium to the ABO Blood Group System Population Genetics & Hardy-Weinberg Equilibrium IBO·2016·Q41 — ptsPDF
Q42 Positive vs Negative Frequency-Dependent Selection in Practice Natural Selection: Modes & Fitness IBO·2016·Q42 — ptsPDF
Q43 Non-Lethal Predation Effects on Dragonfly Larval Survival and Metamorphosis Ecology IBO·2016·Q43 — ptsPDF
Q44 Temperature-Dependent Competitive Outcomes Between Two Salmonid Fishes Ecology IBO·2016·Q44 — ptsPDF
Q45 Predator-Specific Effects on Guppy Color-Pattern Evolution Natural Selection: Modes & Fitness IBO·2016·Q45 — ptsPDF
Q46 Grazing Intensity, Root Competition, and Sex Ratio in Poa Grass Ecology IBO·2016·Q46 — ptsPDF
Q47 Gut Passage and Germination of Mimosa Seeds Ingested by Goats Coevolution & Species Interactions IBO·2016·Q47 — ptsPDF
Q48 Reading Relationships from a Five-Taxon Cladogram Phylogenetic Trees & Cladistics IBO·2016·Q48 — ptsPDF
Q49 Polyphyletic and Paraphyletic Groups in Modern Classification Classification Principles & Nomenclature IBO·2016·Q49 — ptsPDF
Q50 Pitfalls of Molecular Sequences as Phylogenetic Markers Molecular Systematics IBO·2016·Q50 — ptsPDF