Answer:
Adenine
Step-by-step explanation:
Adenine is a nitrogenous base found in RNA and DNA. it is one of the purine bases and can be paired with thymine and uracil.
Adenine is not only found in nucleic acids (DNA and RNA) it is also part of the adenosine triphosphate, ATP, which is an extremely important molecule because it is the energy currency of the cell being used in various metabolic processes in the body.