The Pyrimidine bases in DNA are:
- AAdenine and Guanine
- BThymine and Adenine
- CCytosine and Guanine
- DThymine and Cytosine
Solution & Step-by-step Explanation
Nitrogenous bases in DNA are categorized into two classes:
* Purines: Adenine (A) and Guanine (G), which possess a double-ring structure.
* Pyrimidines: Thymine (T) and Cytosine (C), which possess a single-ring structure. (Note: Uracil replaces Thymine in RNA).
* Purines: Adenine (A) and Guanine (G), which possess a double-ring structure.
* Pyrimidines: Thymine (T) and Cytosine (C), which possess a single-ring structure. (Note: Uracil replaces Thymine in RNA).