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Biology 2020 JAMB Past Questions

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26

For growth to occur in organisms, the rate of

  • A. anabolism must exceed that of catabolism
  • B. catabolism must exceed that of anabolism
  • C. food storage must be low
  • D. food storage must be high
View Answer & Discuss (1) JAMB 2020
27

The probability of a baby being a boy or a girl depends on the contribution of the

  • A. father's sex cells
  • B. father's stomatic chromosome
  • C. mother's sex cell
  • D. mother's X-chromosome
View Answer & Discuss (3) JAMB 2020
28

Both recesssive and dominant characters are found

  • A. on different chromosome in the cell
  • B. at the same logus of a homologous chromosome
  • C. at a different loci of a homologous chromosome
  • D. on the same chromatid in a chromosome
View Answer & Discuss (2) JAMB 2020
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29

In a population of living things, the parameters of size, height, weight and colours are examples of

  • A. continuous variation
  • B. non-heritable variation
  • C. discontinuous variation
  • D. physiological variation
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30

Use the diagram to answer the question.

The process of water loss and intake indicated by the arrows labelled i and ii are respectively

  • A. evaporation and osmosis
  • B. osmosis and exhalation
  • C. osmosis and diffusion
  • D. urination and diffusion
View Answer & Discuss (10) JAMB 2020
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