Here's a breakdown:

* Deoxyribose: This is a five-carbon sugar molecule that forms the core structure of the backbone.

* Phosphate Group: These negatively charged groups link the deoxyribose molecules together, creating a continuous chain.

The nitrogenous bases (adenine, guanine, cytosine, and thymine) are attached to the sugar molecules, extending out from the backbone like "rungs" on a ladder. These bases are responsible for carrying the genetic information.