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Chargaff's rules state that the amount of adenine equals the amount of:

AGuanine
BCytosine
CUracil
DThymine
Answer & Solution
Correct answer: D. Thymine
1. Cytosine equals guanine too. 2. A equals T and G equals C. 3. Ratios of A+T to G+C differ by species. _Source: OpenStax Biology 2e, Chapter 14, DNA Structure and Function (CC BY 4.0)._
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