Nitrogenous bases in DNA and RNA?

Adenine
Cytosine
Guanine
All the above

The correct answer is: D. All the above

Adenine, cytosine, and guanine are the three types of nitrogenous bases found in DNA and RNA. They are also known as purines. The fourth type of nitrogenous base, thymine, is found only in DNA. It pairs with adenine, while cytosine pairs with guanine.

Nitrogenous bases are essential for the structure and function of DNA and RNA. They are responsible for the storage and transmission of genetic information.