In the DNA double helix adenine pairs with:
ACytosine
BGuanine
CUracil
DThymine
Answer & Solution
Correct answer: D. Thymine
1. The two strands are held by hydrogen bonds.
2. Each base pairs with only one partner.
3. Adenine pairs with thymine.
_Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_
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