WAEC Biology 2025 Objective — Question 26
Question 26 of 50 from the West African Examinations Council (WAEC) Biology 2025 Objective paper, with the correct answer and a full explanation.
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Which of the following statements is not correct about the dental formula of humans?
- A. One pair of canines is on the upper jaw and three pairs of premolars are on the lower jaw
- B. Two pairs of incisors are on the upper jaw and three pairs of premolars are on the lower jaw
- C. Two pairs of incisors are on the upper jaw and three pairs of molars are on the lower jawCorrect
- D. One pair of canines is on the upper jaw and four pairs of molars are on the lower jaw
Explanation
Dental formula of humans: i=2/2, c=1/1, p=2/2, m=3/3, giving 2 pairs of incisors, 1 pair of canines, 2 pairs of premolars and 3 pairs of molars on both the upper and lower jaws. Statements A, B and D correctly describe this arrangement, so C is the statement that is NOT correct.
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