Adenine and thymine are held together by how many hydrogen bonds?
ATen
BOne
CTwo
DSix
Answer & Solution
Correct answer: C. Two
1. Cytosine and guanine form three.
2. Adenine and thymine form two.
3. Base pairs are stabilised by these bonds.
_Source: OpenStax Biology 2e, Chapter 14, DNA Structure and Function (CC BY 4.0)._
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