You are absolutely right! The four nitrogenous bases that make up a DNA molecule are:

* Adenine (A)

* Thymine (T)

* Guanine (G)

* Cytosine (C)

These bases pair up in a specific way: adenine always pairs with thymine (A-T), and guanine always pairs with cytosine (G-C). This pairing is essential for the structure and function of DNA.