WAEC Biology 2012 Objective — Question 55
Question 55 of 60 from the West African Examinations Council (WAEC) Biology 2012 Objective paper, with the correct answer and a full explanation.
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In the structure of DNA, which of the following statements is true?
- A. Guanine and cytosine are complementary; thymine and adenosine are complementaryCorrect
- B. Adenine pairs with guanine
- C. Cytosine pairs with thymine
- D. All bases pair randomly
Explanation
Guanine and cytosine are complementary bases; thymine and adenosine are complementary bases.
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