Theoretical 2 Start Timed Attempt β π Leaderboard Theoretical 2 Exam + Official Answer Key Community Solutions (unofficial) No.TitleSubjectsPoints Q51 Cancer Cell Metabolism β Aerobic Glycolysis and the Warburg Effect Bioenergetics & Central Metabolism Overview β PDF Q52 Cryopyrin Inflammasome β Western Blot of WT and Mutant Variants Immune Physiology β PDF Q53 Telomerase β Mechanism of Telomere Extension DNA Structure & Replication β PDF Q54 NAD(P)H Fluorescence During the AerobicβAnaerobic Transition in Yeast Bioenergetics & Central Metabolism Overview β PDF Q55 X-Irradiation of Yeast β NAD(P)H Fluorescence and Metabolic Recovery Bioenergetics & Central Metabolism Overview β PDF Q56 Lysosomal Exocytosis in Cancer Cells Endomembrane System & Protein Trafficking β PDF Q57 PIP2/PIP3 Signaling in T Cells β PTEN and Antigen Dose Immune Physiology Cell Signaling & Communication β PDF Q58 TAK1 Kinase and Takinib β Competitive vs Non-Competitive Inhibition Enzyme Kinetics & Regulation β PDF Q59 Mitochondrial Innate Immunity β Yme1L, SLC25A33 and mtDNA Release Mitochondria & Chloroplasts: Structure & Endosymbiotic Origin Immune Physiology β PDF Q60 Alzheimer's Disease β APP Processing by Ξ±-, Ξ²- and Ξ³-Secretases Protein Structure, Folding & Function β PDF Q61 RNA Virus Replication Cycles β Genome Classification Nucleotide & Nucleic Acid Chemistry β PDF Q62 Pine Needle Cross-Section β Resin Duct and Mesophyll Leaf Anatomy β PDF Q63 Land Plant Phylogeny β Evaluating Four Cladograms Plant Body Plans Across Major Lineages β PDF Q64 The C4 Rice Project β Engineering C4 Photosynthesis into a C3 Crop Calvin Cycle, Photorespiration & C4/CAM Biochemistry β PDF Q65 Arabidopsis Sun vs Shade Leaves β Cross-Section Comparison Leaf Anatomy β PDF Q66 Transpiration Rate Differences Between Leaf Surfaces Stomatal Physiology & Gas Exchange β PDF Q67 Root Water Transport Pathways β Apoplast vs Symplast Water Transport & Transpiration β PDF Q68 Pressure-Flow Model of Phloem Sucrose Transport Phloem Transport & Translocation β PDF Q69 Mechanosensitive Ion Channels β OSCA vs Piezo1 Cell Signaling & Communication β PDF Q70 Land Plant Phylogeny and Shared Derived Characters History of Life: Origin & Major Transitions β PDF Q71 Hippo Pathway Signaling in Blastocyst Implantation Cell Signaling & Communication β PDF Q72 Mechanisms of Synaptic Specificity Nervous System Physiology β PDF Q73 PD-1 Immune Checkpoint Signaling Immune Physiology β PDF Q74 Pathophysiology of Traumatic Brain Injury Nervous System Physiology β PDF Q75 Plasma Enzyme Diagnostics After Myocardial Infarction Cardiovascular Physiology β PDF Q76 Insulin and Glucagon Dynamics in Type 2 Diabetes Endocrine System Physiology β PDF Q77 Mitochondrial Calcium Handling in Synaptic Plasticity and Aging Nervous System Physiology β PDF Q78 Cellular Response to DNA Damage in Cancer DNA Repair & Recombination β PDF Q79 Primary vs Secondary Antibody Response Immune Physiology β PDF Q80 Dopamine and GABA Neuron Activity in Stress-Induced Anhedonia Nervous System Physiology β PDF Q81 Blue Light, Melanopsin and the Circadian Phase-Shift Response Biological Rhythms β PDF Q82 Experimental Design Limits β Herbal Treatment and Statin Co-Therapy Cardiovascular Physiology β PDF Q83 Gut Microbiome and Lifespan in Drosophila Ecology β PDF Q84 Dietary Fat, Sucrose and Cardiac Hypertrophy in Hypertensive Rats Cardiovascular Physiology β PDF Q85 The methuselah Mutation and Stress Resistance in Drosophila Comparative Thermoregulation β PDF Q86 Giant Panda Fecal-Smearing Behavior and the TRPM8 Cold Receptor Mechanisms of Behavior β PDF Q87 Rearing Environment and Social Bonds in Ravens Development & Learning β PDF Q88 Free Choice vs Random Union β Assortative Mating in Pigeons Mating Systems & Sexual Selection β PDF Q89 Amplexus and Sperm Competition in Newts Mating Systems & Sexual Selection β PDF Q90 Cannibalism and Larval-Stage Duration in Invasive Cane Toads Foraging & Anti-Predator Behavior β PDF Q91 Song Recognition Between Island Populations of Tree Finches Animal Communication β PDF Q92 Hawk-Dove-Retaliator Game Theory and Evolutionarily Stable Strategies Aggression, Territoriality & Social Structure β PDF Q93 Worker Sterility and Kin Selection in Social Insects Kin Selection, Altruism & Eusociality β PDF Q94 Canine Pedigree Analysis of a Monogenic Disease Pedigree Analysis & Human Genetic Disorders β PDF Q95 Hardy-Weinberg Calculations for Familial Mediterranean Fever Population Genetics & Hardy-Weinberg Equilibrium β PDF Q96 Transcriptome-Based Drug Repurposing β Infliximab Across Four Diseases Immune Physiology β PDF Q97 Telomerase-Dependent vs Alternative Telomere Lengthening in Testis DNA Structure & Replication β PDF Q98 Grape Domestication and Phylogeography from SNP Data Genetic Drift, Gene Flow & Mutation β PDF Q99 Competitive Displacement Between Two Hare Species in Newfoundland Foraging & Anti-Predator Behavior β PDF Q100 Cold-Exposure Duration, Acclimation and Mollusc Survival Comparative Thermoregulation β PDF