Here's a breakdown:
* DNA has four nitrogenous bases:
* Adenine (A)
* Guanine (G)
* Cytosine (C)
* Thymine (T)
* RNA also has four nitrogenous bases, but uracil (U) replaces thymine:
* Adenine (A)
* Guanine (G)
* Cytosine (C)
* Uracil (U)
Why are they called nitrogenous?
These bases are called "nitrogenous" because they contain nitrogen atoms within their molecular structures. These nitrogen atoms play a crucial role in the formation of hydrogen bonds between the bases, which hold the DNA double helix together.
Let me know if you have any more questions about nitrogenous bases or nucleic acids!
