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WAEC Biology 1999 Question 52

Question 52

Variation

Which of the following is an example of discontinuous variation?

  1. A.Height of students
  2. B.Complexion of beauty contestants
  3. C.Blood groups of patients
  4. D.Weight of weight lifters
Show the answer and explanation

Answer: C (Blood groups of patients)

Explanation

Blood groups fall into distinct classes (A, B, AB, O) with no in-between forms, which is discontinuous variation.