Official SyllabusJAMB 2026

BiologyTopics, Objectives & Mark Breakdown

Quick Summary: JAMB Biology Syllabus 2026

The official JAMB Biology exam consists of 40 questions. Candidates must study 5 core sections to cover the entire curriculum. For the highest chance of scoring 300+, JAMB officially recommends studying from texts such as Ndu, F.O. C. et al. (2001) Senior Secondary School Biology: Books 1-3. Longman.

Total Questions

40

Core Sections

5

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JAMB Biology Topics & Areas of Concentration

Variety of Organisms
+
Topics to Cover:
  • Characteristics of Living Organisms
  • Cell Structure, Functions, and Levels of Organization
  • Evolution and Classification (Monera, Protista, Fungi, Plantae, Animalia)
  • Structural and Behavioural Adaptations
What JAMB will test you on:
  • Identify and compare the structures of plant and animal cells
  • Trace the levels of organization from cell to organism
  • Trace the life histories and advancement of invertebrate and vertebrate animals
  • Describe adaptive colouration, territorial behaviour, and structural adaptations for survival
Form and Functions
+
Topics to Cover:
  • Internal Structure of Plants and Mammals
  • Plant and Animal Nutrition (Photosynthesis, Food Tests, Alimentary Canal)
  • Transport Systems (Circulatory and Vascular)
  • Respiration and Excretion Mechanisms
  • Support and Movement (Skeletons and Tropic Movements)
  • Reproduction and Growth (Asexual, Sexual, Seed Germination)
  • Co-ordination and Control (Nervous System, Sense Organs, Hormones)
What JAMB will test you on:
  • Compare autotrophic and heterotrophic nutrition and differentiate light/dark reactions of photosynthesis
  • Describe mechanisms of transportation, transpiration, and blood circulation
  • Relate the structure of kidneys, lungs, and skin to their excretory functions
  • Differentiate between asexual and sexual reproduction in plants and mammals
  • Illustrate reflex actions and describe the functions of the central nervous system and endocrine glands
Ecology
+
Topics to Cover:
  • Factors Affecting Distribution (Abiotic and Biotic)
  • Symbiotic Interactions, Energy Flow, and Nutrient Cycling (Carbon, Water, Nitrogen)
  • Natural Habitats and Local Nigerian Biomes
  • Population Ecology and Ecological Succession
  • Soil Characteristics and Components
  • Humans and Environment (Diseases, Drug Abuse, Pollution, Conservation)
What JAMB will test you on:
  • Explain food chains, food webs, and nutrient cycles in the ecosystem
  • Compute population density and relate it to intra/inter-specific competition
  • Identify physical properties of soil types and their effects on plant growth
  • Trace the vectors, transmission, and control of endemic diseases (Malaria, Cholera, HIV/AIDS)
  • Assess methods of conservation for natural resources, wildlife, and the environment
Heredity and Variations
+
Topics to Cover:
  • Morphological and Physiological Variations (Height, Fingerprints, Blood Groups)
  • Heredity and Chromosomes (DNA Structure, Transmission of Characters)
  • Probability in Genetics and Sex Determination
  • Sex-Linked Characters (Baldness, Haemophilia, Colour Blindness)
  • Applications of Biotechnology
What JAMB will test you on:
  • Differentiate between continuous and discontinuous variations
  • Illustrate the segregation and recombination of genes at meiosis and fertilization
  • Apply principles of heredity to cross-breeding, blood grouping, and sickle-cell traits
  • Analyze the use of recombinant DNA and biotechnology in medicine and agriculture
Evolution
+
Topics to Cover:
  • Theories of Evolution (Lamarck's and Darwin's Theories)
  • Evidences of Evolution (Fossil Records, Comparative Anatomy, Embryology)
  • Modern Evolutionary Theories (Mutation and Genetic Studies)
What JAMB will test you on:
  • Explain organic evolution as adaptive changes over time
  • Compare the contributions of Lamarck and Darwin to evolutionary theory
  • Trace evolutionary trends in plants and animals using fossil and anatomical evidences

Official JAMB Biology Recommended Textbooks

  • Ndu, F.O. C. et al. (2001) Senior Secondary School Biology: Books 1-3. Longman
  • Odunfa, S.A. (2001) Essential of Biology. Heinemann
  • Ogunniyi M.B. et al. (2000) Biology for Senior Secondary Schools. Macmillan
  • Ramalingam, S.T. (2018) Modern Biology, SS Science Series. AFP
  • Stan. (2004) Biology for Senior Secondary Schools. Heinemann
  • Idodo-Umeh, G (2015) College Biology. Idodo-Umeh Publishers Ltd.
  • Micheal, M.C. (2018) Essential Biology for Senior Secondary Schools. TONAD Publishers Ltd.

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