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Which of the following pairs of features is an example of discontinuous variation?

Biology
WAEC 2025

Which of the following pairs of features is an example of discontinuous variation?

  • A. height and blood group
  • B. height and sex
  • C. colour and weight
  • D. fingerprint and blood group
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Correct Answer: Option D
Explanation

Discontinuous variation (also known as discrete variation) refers to traits that fall into distinct, separate categories with no intermediate forms.

Fingerprints are categorized into specific, unique patterns (such as loops, whorls, or arches) and do not exist on a continuous spectrum.

Blood Groups of individuals belong to specific types (A, B, AB, or O) without any in-between values, making it a clear example of discrete categorization.


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