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Theoretical 1

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Theoretical 1 Exam Official Answer Key (Theoretical Exams 1 + 2)
Q1 Neurospora Pathway Reconstruction Gene Interactions: Epistasis & Complementation Analysis IBO·2018·Q1 — ptsPDF
Q2 DNA Barcoding in Persian Gulf Fish Molecular Systematics IBO·2018·Q2 — ptsPDF
Q3 K2P Genetic Divergence Across Regions Molecular Systematics IBO·2018·Q3 — ptsPDF
Q4 Pulse-Chase RNA Processing Transcription & RNA Processing IBO·2018·Q4 — ptsPDF
Q5 Fluorescence Quenching of Tryptophan Residues Protein Structure, Folding & Function IBO·2018·Q5 — ptsPDF
Q6 pHLIP-Mediated AntimiR Delivery to Tumours Cell Signaling & Communication IBO·2018·Q6 — ptsPDF
Q7 Primary vs Secondary Response Genes Gene Regulation: Eukaryotic & Epigenetics IBO·2018·Q7 — ptsPDF
Q8 Mitochondrial Uncoupling Drugs Bioenergetics & Central Metabolism Overview IBO·2018·Q8 — ptsPDF
Q9 SalI/XhoI Restriction Cloning Analysis Recombinant DNA & Biotechnology Techniques IBO·2018·Q9 — ptsPDF
Q10 Yeast Mating and Polygenic Complementation Gene Interactions: Epistasis & Complementation Analysis IBO·2018·Q10 — ptsPDF
Q11 Alpha- vs Beta-Thalassemia and AHSP Protein Structure, Folding & Function Pedigree Analysis & Human Genetic Disorders IBO·2018·Q11 — ptsPDF
Q12 G6PD Deficiency and the Pentose Phosphate Pathway Bioenergetics & Central Metabolism Overview IBO·2018·Q12 — ptsPDF
Q13 Beta-Clamp Processivity in DNA Polymerase III DNA Structure & Replication IBO·2018·Q13 — ptsPDF
Q14 Two-Step Enzymatic Release of Para-nitrophenol Enzyme Kinetics & Regulation IBO·2018·Q14 — ptsPDF
Q15 Amino Acid Carbon Labelling Through the Krebs Cycle Bioenergetics & Central Metabolism Overview IBO·2018·Q15 — ptsPDF
Q16 Spinal Cord Injury and Sensory Pathways Nervous System Physiology IBO·2018·Q16 — ptsPDF
Q17 Cardiac Cycle and Amygdala Fear Response Nervous System Physiology Cardiovascular Physiology IBO·2018·Q17 — ptsPDF
Q18 Light Refraction in the Four-Eyed Fish Anableps Fish & Amphibian Anatomy IBO·2018·Q18 — ptsPDF
Q19 Thyroid Function Tests: TSH, T4, and T3RU Endocrine System Physiology IBO·2018·Q19 — ptsPDF
Q20 Osmolality and Sperm Motility Initiation Comparative Osmoregulation & Excretion Reproductive Physiology IBO·2018·Q20 — ptsPDF
Q21 EBV Screening Test Sensitivity and Specificity Immune Physiology IBO·2018·Q21 — ptsPDF
Q22 Frog Embryo Sagittal and Cross Sections Evolutionary Developmental Biology (Evo-Devo) IBO·2018·Q22 — ptsPDF
Q23 Specification vs Determination in Heterotopic Grafts Evolutionary Developmental Biology (Evo-Devo) IBO·2018·Q23 — ptsPDF
Q24 Phylogenetic Position of Symsagittifera Phylogenetic Trees & Cladistics IBO·2018·Q24 — ptsPDF
Q25 Phylogenetic Position of Dicyemids Phylogenetic Trees & Cladistics IBO·2018·Q25 — ptsPDF
Q26 Comparative Flight Muscle Anatomy of Birds and Bats Locomotion & Energetics Mammalian Comparative Anatomy IBO·2018·Q26 — ptsPDF
Q27 Anthocyanin Pigments in Water Lily Flower Colour Carbohydrate Chemistry & Biology IBO·2018·Q27 — ptsPDF
Q28 Boron-Sugar Complexes and Pollen Tube Growth Mineral Nutrition & Nutrient Uptake IBO·2018·Q28 — ptsPDF
Q29 Rhizobial Nitrogen Fixation Symbiosis Mineral Nutrition & Nutrient Uptake IBO·2018·Q29 — ptsPDF
Q30 Light Colour Effects on Photosynthesis in Arabidopsis Light Reactions & Photophosphorylation IBO·2018·Q30 — ptsPDF
Q31 Adaptations of Submerged Aquatic Plants Water Transport & Transpiration IBO·2018·Q31 — ptsPDF
Q32 Speciation and Extinction Rates Across Plant Habits Macroevolutionary Patterns & Mass Extinctions IBO·2018·Q32 — ptsPDF
Q33 Evolution of Annual vs Perennial Life-History in Nemesia Macroevolutionary Patterns & Mass Extinctions IBO·2018·Q33 — ptsPDF
Q34 Polyploidy and Alpine Habitat in Veronica Macroevolutionary Patterns & Mass Extinctions IBO·2018·Q34 — ptsPDF
Q35 Kleptoplasty in Sacoglossan Sea Slugs Mitochondria & Chloroplasts: Structure & Endosymbiotic Origin IBO·2018·Q35 — ptsPDF
Q36 Comparative Anatomy of a Leaf's Medial and Lateral Regions Leaf Anatomy IBO·2018·Q36 — ptsPDF
Q37 Trophy Hunting and Bighorn Sheep Horn Size Natural Selection: Modes & Fitness IBO·2018·Q37 — ptsPDF
Q38 Haldane's Rule in Mosquitoes Speciation & Reproductive Isolation IBO·2018·Q38 — ptsPDF
Q39 Synonymous vs Non-Synonymous Variation in Humans Molecular Evolution & Neutral Theory IBO·2018·Q39 — ptsPDF
Q40 Hypotheses for the Evolution of Sex Genetic Drift, Gene Flow & Mutation IBO·2018·Q40 — ptsPDF
Q41 Gut Microbiota Across the Colorectal Cancer Progression Ecology IBO·2018·Q41 — ptsPDF
Q42 Ecological Pyramids of Energy and Biomass Ecology IBO·2018·Q42 — ptsPDF
Q43 Competitive Exclusion and Pitcher Plant Coexistence Coevolution & Species Interactions IBO·2018·Q43 — ptsPDF
Q44 Regional vs Local Drivers of Species Diversity Ecology IBO·2018·Q44 — ptsPDF
Q45 Risk-Taking and Social Dynamics in Adelie Penguins Foraging & Anti-Predator Behavior IBO·2018·Q45 — ptsPDF
Q46 Conditional Cooperation and the Evolution of Deception Kin Selection, Altruism & Eusociality IBO·2018·Q46 — ptsPDF
Q47 Williams' Evolutionary Theory of Senescence Natural Selection: Modes & Fitness IBO·2018·Q47 — ptsPDF