Biology for IGCSE & O level - Biological Molecules (Section 1 - No. 18)
What is the correct pairing for the bases in a DNA molecule?
A with C and T with G
A with G and C with T
A with T and C with G
A with U and C with G
Explanation
Adenine (A) always pairs with Thymine (T), and Cytosine (C) always pairs with Guanine (G).
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