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WAEC Biology 2003 Question 51

Question 51

Variation

Which of the following is an example of discontinuous variation?

  1. A.The range in height of a pea plant from 30 cm to 50 cm.
  2. B.Offspring, including the two male cats and three female cats
  3. C.The colour of pear plants grown in the dark
  4. D.The adult body weight ranging from 50 kg to 95 kg.
Show the answer and explanation

Answer: B (Offspring, including the two male cats and three female cats)

Explanation

Sex is either male or female with nothing in between, so it is discontinuous. Height and weight ranges are continuous.