Which of these is not a hereditary variation?

Assessment: WAEC SSCE - Biology - 1996 (Objective) Subject: Biology

Question 1 Report

Which of these is not a hereditary variation?
Answer Details
Infant paralysis is not a hereditary variation. Infant paralysis, also known as poliomyelitis, is a viral disease that affects the nervous system and is transmitted through contaminated food and water. It is not a genetic trait that is passed down from parents to offspring. The other options listed are all examples of hereditary variations: blood group, sickle cell trait, shape of face and nose, and colour of hair are all determined by genes that are inherited from parents.

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