← All Likely 2027 questions 50 likely Biology questions for the 2027 JAMB examination, written from the official syllabus and recurring past-question patterns, each with the correct answer and a short explanation. The first 6 are free to read — full access (₦2,990 once) unlocks all 50.
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1. Which organelle is the principal site of aerobic ATP production in a typical animal cell? Cell Structure and Functions A. Golgi apparatus B. Mitochondrion C. Ribosome D. Lysosome Tap an option, or show answer
2. A strip of fresh yam placed in a concentrated salt solution becomes limp because Movement of Substances Across Cell Membranes A. salt moves out of its cells by diffusion B. water enters its cells by active transport C. water leaves its cells by osmosis D. its cell walls dissolve in the solution Tap an option, or show answer
3. Which event in meiosis directly reduces the chromosome number from diploid to haploid? Cell Division A. Separation of homologous chromosomes during anaphase I B. Replication of DNA during interphase C. Separation of sister chromatids during anaphase II D. Exchange of segments between homologous chromosomes Tap an option, or show answer
4. Which sequence correctly represents increasing levels of biological organization in a mammal? Levels of Organization A. Tissue → cell → organ → system → organism B. Cell → organ → tissue → organism → system C. Organ → tissue → cell → system → organism D. Cell → tissue → organ → system → organism Tap an option, or show answer
5. Which feature distinguishes insects from arachnids? Classification of Organisms A. Presence of a chitinous exoskeleton B. Possession of three pairs of walking legs C. Presence of jointed appendages D. Possession of bilateral symmetry Tap an option, or show answer
6. Viruses are described as obligate intracellular parasites because they Viruses A. carry out photosynthesis inside host cells B. possess both a nucleus and cytoplasm C. reproduce only within living host cells D. obtain nutrients only from dead organic matter Tap an option, or show answer These are AI predictions for revision, not leaked or official exam questions.