Adenine (noun)

A nitrogenous base, one of the four building blocks of DNA and RNA, represented by the letter A.

Origin:

The word "adenine" is derived from the name of the gland, adenoids where it was first found.

Examples:

1. Adenine pairs with thymine in DNA and with uracil in RNA.
2. Adenine is one of the five nitrogenous bases in the nucleic acids DNA and RNA.
3. Adenine is a purine base that is similar to guanine.
4. Adenine is a key component of the genetic code and plays a crucial role in the process of protein synthesis.
5. Adenine is a necessary component of the energy-carrying molecule adenosine triphosphate (ATP).