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Theoretical A

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Theoretical A Exam Official Answer Key & Worked Solutions
Q1 Choosing a Sequencing Technology for Rare-Disease Genomes Biomolecular Analytical Techniques IBO·2017·Q1 — ptsPDF
Q2 Contamination and Degradation in Ancient DNA Biomolecular Analytical Techniques Molecular Systematics IBO·2017·Q2 — ptsPDF
Q3 Two Molecular Subtypes of DLBCL Lymphoma Biomolecular Analytical Techniques IBO·2017·Q3 — ptsPDF
Q4 Stochastic Noise in a Dual-Reporter Plasmid Gene Regulation: Prokaryotic IBO·2017·Q4 — ptsPDF
Q5 H2A.Z Occupancy and Temperature-Driven Flowering Gene Regulation: Eukaryotic & Epigenetics IBO·2017·Q5 — ptsPDF
Q6 Heritable Silencing of a Transgene by RNA Gene Regulation: Eukaryotic & Epigenetics IBO·2017·Q6 — ptsPDF
Q7 Designing a CRISPR Knockout of Gene X Recombinant DNA & Biotechnology Techniques IBO·2017·Q7 — ptsPDF
Q8 Coordinating Enzymes at the E. coli Replication Fork DNA Structure & Replication IBO·2017·Q8 — ptsPDF
Q9 Reading Adenovirus Transcription/Splicing from EM Images Transcription & RNA Processing IBO·2017·Q9 — ptsPDF
Q10 Timescales and Fragment Sizes Behind a DYSTROPHIN Diagnosis Pedigree Analysis & Human Genetic Disorders Recombinant DNA & Biotechnology Techniques IBO·2017·Q10 — ptsPDF
Q11 Recombination Mapping from a Three-Point Drosophila Cross Linkage, Recombination & Genetic Mapping IBO·2017·Q11 — ptsPDF
Q12 CwiM as a Zinc-Dependent Regulator of Mycobacterial Cell Elongation Protein Structure, Folding & Function IBO·2017·Q12 — ptsPDF
Q13 Pat and Cob Control Acetylation and Growth in Salmonella Enzyme Kinetics & Regulation IBO·2017·Q13 — ptsPDF
Q14 Seasonal Gene Expression in Cork Formation Secondary Growth & Wood Anatomy Plant Stress Physiology & Defense IBO·2017·Q14 — ptsPDF
Q15 Reversible Enzymes Shape the Cinchona Alkaloid Pathway Bioenergetics & Central Metabolism Overview IBO·2017·Q15 — ptsPDF
Q16 Cytokinin Receptor Loss and Day-Length Stress in Arabidopsis Biological Rhythms Plant Hormones IBO·2017·Q16 — ptsPDF
Q17 Phenolics from Oak Galls Protect Auxin from Oxidation Plant Hormones Plant Stress Physiology & Defense IBO·2017·Q17 — ptsPDF
Q18 Untangling GH and IGF1 Roles in Growth-Plate Elongation Endocrine System Physiology IBO·2017·Q18 — ptsPDF
Q19 Grafting Reveals Where RMS1 Signalling Originates Plant Hormones IBO·2017·Q19 — ptsPDF
Q20 Comm and Robo Set Midline-Crossing Behaviour in Drosophila Neurons Cell Signaling & Communication IBO·2017·Q20 — ptsPDF
Q21 Testing Zebrafish Stripes as a Turing Pattern Evolutionary Developmental Biology (Evo-Devo) IBO·2017·Q21 — ptsPDF
Q22 Mapping >12,000 Human Proteins Across Cell Organelles Endomembrane System & Protein Trafficking IBO·2017·Q22 — ptsPDF
Q23 Geometry and Gradients Set Calcium Flow at the Muscle Membrane Muscle Physiology Cell Signaling & Communication IBO·2017·Q23 — ptsPDF
Q24 Directionality and Excitability of the Giant Worm Action Potential Nervous System Physiology IBO·2017·Q24 — ptsPDF
Q25 Summation and Inhibition Set the Threshold at Neuron 4 Nervous System Physiology IBO·2017·Q25 — ptsPDF
Q26 Receptor Occupancy and a Non-Competitive Inhibitor of Acetylcholine Signalling Cell Signaling & Communication IBO·2017·Q26 — ptsPDF
Q27 Arouser Links Egfr Signalling to Alcohol Sensitivity and Social Isolation Mechanisms of Behavior Cell Signaling & Communication IBO·2017·Q27 — ptsPDF
Q28 Optogenetically Implanting a False Fear Memory in Mice Development & Learning IBO·2017·Q28 — ptsPDF
Q29 Independent Assortment of Burrow Traits in Hybrid Mice Linkage, Recombination & Genetic Mapping Quantitative Genetics, Heritability & Inbreeding IBO·2017·Q29 — ptsPDF
Q30 Radar-Tracked Foraging Reveals Bee Route Memory, Not Optimisation Orientation & Navigation Foraging & Anti-Predator Behavior IBO·2017·Q30 — ptsPDF
Q31 Serial Reproduction and the Drift of Remembered Images Development & Learning IBO·2017·Q31 — ptsPDF
Q32 Locating the Blood- and Nerve-Dependent Control of the Pituitary Endocrine System Physiology IBO·2017·Q32 — ptsPDF
Q33 Parabiosis Reveals a Circulating Satiety Hormone in Obese Mice Endocrine System Physiology Gene Interactions: Epistasis & Complementation Analysis IBO·2017·Q33 — ptsPDF
Q34 Contrasting N:P Limitation Across European Coastal Waters Ecology IBO·2017·Q34 — ptsPDF
Q35 Cross-Reactivity Limits an ELISA for Triazine Pesticides Biomolecular Analytical Techniques Immune Physiology IBO·2017·Q35 — ptsPDF
Q36 Phylogenetic Age Predicts Extinction Risk in Madagascan Plants Phylogenetic Trees & Cladistics Ecology IBO·2017·Q36 — ptsPDF
Q37 Windfarm Construction Disrupts Bird Populations More Than Operation Ecology IBO·2017·Q37 — ptsPDF
Q38 Myxomatosis, Introduced Parakeets, and a Native Falcon in Britain Ecology IBO·2017·Q38 — ptsPDF
Q39 Limpets and Urchins Have Unequal Effects on Seaweed Cover Ecology IBO·2017·Q39 — ptsPDF
Q40 Route Choice and Season Explain Cuckoo Population Trends Orientation & Navigation Ecology IBO·2017·Q40 — ptsPDF
Q41 Mark-Recapture and Hybridisation Risk in Scottish Wildcats Ecology Speciation & Reproductive Isolation IBO·2017·Q41 — ptsPDF
Q42 Correlated rDNA Abundances Reveal Bacterial Niche Structure Ecology Coevolution & Species Interactions IBO·2017·Q42 — ptsPDF
Q43 A Global Haplotype Network Traces Human and Denisovan Ancestry Human Evolution & Hominid Phylogeny Molecular Systematics IBO·2017·Q43 — ptsPDF
Q44 From Hamilton's Rule to the Price Equation in Social Evolution Kin Selection, Altruism & Eusociality Quantitative Genetics, Heritability & Inbreeding IBO·2017·Q44 — ptsPDF
Q45 Artificial Selection Reveals Genetic Variation in Eyespot Traits Quantitative Genetics, Heritability & Inbreeding Natural Selection: Modes & Fitness IBO·2017·Q45 — ptsPDF
Q46 A Selective Sweep in Cortex Explains Peppered Moth Melanism Natural Selection: Modes & Fitness Molecular Evolution & Neutral Theory IBO·2017·Q46 — ptsPDF