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JAMB UTME 2016

JAMB Biology 2016 past questions

6 objective questions from the 2016 JAMB Biology paper. Answer each one, then reveal the answer and explanation.

All JAMB Biology past questions

  1. Question 1

    Reproduction

    Seeds dispersed by wind are usually

    1. Option A: light, with hairs or wings
    2. Option B: brightly coloured
    3. Option C: covered in hooks
    4. Option D: surrounded by juicy flesh
    Show the answer to question 1

    Answer: A, light, with hairs or wings

    Hairs and wings help seeds float on air.

  2. Question 2

    Excretion and respiration

    The respiratory organs of a fish are the

    1. Option A: lungs
    2. Option B: skin
    3. Option C: tracheae
    4. Option D: gills
    Show the answer to question 2

    Answer: D, gills

    Fish take oxygen from water through gills.

  3. Question 3

    Ecology

    Organisms that make their own food are called

    1. Option A: consumers
    2. Option B: decomposers
    3. Option C: producers
    4. Option D: scavengers
    Show the answer to question 3

    Answer: C, producers

    Green plants are producers.

  4. Question 4

    Cell biology

    Which structure is present in plant cells but absent in animal cells?

    1. Option A: Cell wall
    2. Option B: Cell membrane
    3. Option C: Nucleus
    4. Option D: Mitochondrion
    Show the answer to question 4

    Answer: A, Cell wall

    Only plant cells have a cellulose cell wall.

  5. Question 5

    Genetics

    In guinea pigs, the allele for black fur (B) is dominant over the allele for white fur (b). What is the expected phenotypic ratio of the offspring of a cross between Bb and bb parents?

    1. Option A: 3 black fur : 1 white fur
    2. Option B: All black fur
    3. Option C: 1 black fur : 1 white fur
    4. Option D: All white fur
    Show the answer to question 5

    Answer: C, 1 black fur : 1 white fur

    Bb × bb gives equal numbers of Bb and bb: 1 : 1.

  6. Question 6

    Classification

    Identify the mammal among the following animals.

    1. Option A: bat
    2. Option B: lizard
    3. Option C: frog
    4. Option D: catfish
    Show the answer to question 6

    Answer: A, bat

    The bat is a mammal (class Mammalia).

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