Theoretical 1 Start Timed Attempt β π Leaderboard Theoretical 1 Exam + Official Answer Key Community Solutions (unofficial) No.TitleSubjectsPoints Q1 Alfalfa Mosaic Virus β m6A Demethylation & Viral Replication Protein Structure, Folding & Function Biomolecular Analytical Techniques β PDF Q2 Enzyme Kinetics β Time to Completion vs Temperature Enzyme Kinetics & Regulation β PDF Q3 Amylase Activity β Starch Hydrolysis at 50β70Β°C Enzyme Kinetics & Regulation Carbohydrate Chemistry & Biology β PDF Q4 Enzyme Inhibition β Substrate Concentration vs Rate Curves Enzyme Kinetics & Regulation β PDF Q5 MeselsonβStahl Experiment β DNA Replication Modes DNA Structure & Replication β PDF Q6 Cell Membrane Transport β Arrows X, Y, Z Plasma Membrane Structure & Transport β PDF Q7 Apoptosis β p53/Bax/Bcl-2 Pathway Under Hypoxia Cell Junctions, Extracellular Matrix & Cell Death β PDF Q8 Ethidium Bromide β DNA Binding and Intercalation DNA Structure & Replication Nucleotide & Nucleic Acid Chemistry β PDF Q9 Organ-on-a-Chip β Lung-on-a-Chip & Pulmonary Oedema Model Cell Junctions, Extracellular Matrix & Cell Death Recombinant DNA & Biotechnology Techniques β PDF Q10 3D Bioprinting β Cell Viability, Bioluminescence, and Confocal Imaging Recombinant DNA & Biotechnology Techniques Biomolecular Analytical Techniques β PDF Q11 Heart Decellularization β Fish vs. Rat Cannulation Human Circulatory System Recombinant DNA & Biotechnology Techniques β PDF Q12 iPSC/hESC Cardiomyocyte Grafts After Myocardial Infarction Recombinant DNA & Biotechnology Techniques Cardiovascular Physiology β PDF Q13 3D Skin Substitute β Layered Tissue Engineering Recombinant DNA & Biotechnology Techniques Human Integumentary System β PDF Q14 Water Potential β Osmosis Between Three Plant Cells Water Transport & Transpiration β PDF Q15 Plant Life Cycle β Heterospory and Gametophyte Forms Plant Body Plans Across Major Lineages β PDF Q16 Flower Structure β Symmetry, Pollination, and Calyx Flower Anatomy & Reproductive Structures β PDF Q17 Plant Organ Modifications β Shoot vs. Leaf Origin Stem Anatomy Leaf Anatomy β PDF Q18 Mycorrhizal Symbiosis β Ecto-, Endo-, and Ectendomycorrhiza Root Anatomy Mineral Nutrition & Nutrient Uptake β PDF Q19 Plant Life Cycles β Water-Dependent Fertilization Plant Body Plans Across Major Lineages β PDF Q20 Tree Age Estimation β Annual Ring Growth Secondary Growth & Wood Anatomy β PDF Q21 Biological Samples β Identifying Diverse Organisms Biomolecular Analytical Techniques β PDF Q22 Social Stress Response in Mice β Dominance Hierarchy Aggression, Territoriality & Social Structure β PDF Q23 Gut Microbiome β Bacterial Crossing of the Blood-Brain Barrier Nervous System Physiology Immune Physiology β PDF Q24 Comparative Liver Anatomy β Zebrafish vs. Human Fish & Amphibian Anatomy Mammalian Comparative Anatomy β PDF Q25 Oxytocin and Cortisol β Touch vs. Voice Contact in Girls Endocrine System Physiology β PDF Q26 Cardiac Cycle β Valve Timing and Pressure Changes Cardiovascular Physiology β PDF Q27 Saiga Antelope β Nose Adaptations for Cold, Dust, and Signalling Comparative Thermoregulation Mating Systems & Sexual Selection β PDF Q28 Carbon Dioxide Transport in the Blood Respiratory Physiology β PDF Q29 The Bohr Effect β Oxygen-Haemoglobin Dissociation Respiratory Physiology β PDF Q30 Bone Marrow Conversion β Red vs. Yellow Marrow With Age Human Skeletal System β PDF Q31 Retina Cell Layers β Direction of Light and Cell Types Human Sensory Organs β PDF Q32 Shiverer Mutation β Optic Nerve Myelin Nervous System Physiology β PDF Q33 Dormouse Litters β Growth Rate and Energy Intake Locomotion & Energetics β PDF Q34 Cichlid Fish β Anal Fin Egg-Spot Signalling Mating Systems & Sexual Selection β PDF Q35 Ninespine Stickleback β Sexual Dimorphism and Sneaker Males Mating Systems & Sexual Selection β PDF Q36 Aethia cristatella β Courtship Display on Rocks Aggression, Territoriality & Social Structure Mating Systems & Sexual Selection β PDF Q37 ABO Blood Groups β H Antigen and the Bombay Phenotype Pedigree Analysis & Human Genetic Disorders β PDF Q38 Modes of Natural Selection β Frequency Distribution Curves Natural Selection: Modes & Fitness β PDF Q39 Mutation Rates β Asexual vs. Sexual Yeast Populations Molecular Evolution & Neutral Theory β PDF Q40 Elephants, LIF6, and Cancer Resistance Molecular Evolution & Neutral Theory Cell Junctions, Extracellular Matrix & Cell Death β PDF Q41 Angelman Syndrome β Genomic Imprinting Pedigree Pedigree Analysis & Human Genetic Disorders Extranuclear & Non-Mendelian Inheritance β PDF Q42 Thyrocyte Adenylyl Cyclase β TSH and VIP/PACAP Pathways Endocrine System Physiology β PDF Q43 Giraffe FGFRL1 β Cardiovascular and Skeletal Adaptations Cardiovascular Physiology Molecular Evolution & Neutral Theory β PDF Q44 Macromutations and Morphogenesis β A1/A2/M Gene Model Evolutionary Developmental Biology (Evo-Devo) β PDF Q45 Drosophila Color Preference and Circadian Activity Biological Rhythms β PDF Q46 Three-Toed Sloth Fur Ecosystem β Moths, Algae, and Fungi Coevolution & Species Interactions β PDF Q47 Codling Moth β Temperature/Humidity Ecological Niche Ecology β PDF Q48 Sockeye Salmon β Life Stages and Chukchi Population Age Structure Ecology β PDF Q49 Biological Nitrogen Fixation β Diazotrophs and Nitrogenase Mineral Nutrition & Nutrient Uptake β PDF