DNA is made up of four types of nucleotides, each consisting of:

1. Deoxyribose sugar: A five-carbon sugar molecule.

2. Phosphate group: A molecule containing phosphorus.

3. Nitrogenous base: One of four possible molecules:

* Adenine (A): A purine base.

* Guanine (G): A purine base.

* Cytosine (C): A pyrimidine base.

* Thymine (T): A pyrimidine base.

So, the four types of nucleotides in DNA are:

* Deoxyadenosine monophosphate (dAMP): Adenine + Deoxyribose + Phosphate

* Deoxyguanosine monophosphate (dGMP): Guanine + Deoxyribose + Phosphate

* Deoxycytidine monophosphate (dCMP): Cytosine + Deoxyribose + Phosphate

* Deoxythymidine monophosphate (dTMP): Thymine + Deoxyribose + Phosphate