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The correct base pairing for DNA is

Biology
JAMB 2012

The correct base pairing for DNA is

  • A. adenine → thymine and guanine → cytosine
  • B. adenine → guanine and thymine → cytosine
  • C. adenine → cytosine and guanine → thymine
  • D. adenine → adenine and cytosine → cytosine
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Correct Answer: Option A
Explanation

In DNA, the correct base pairing follows a specific pattern: adenine (A) always pairs with thymine (T), and guanine (G) always pairs with cytosine (C). These pairs are held together by hydrogen bonds. 

i.e  A  → T

     G  → C

There is an explanation video available below.

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Explanation Video

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