What is the structure formed by deoxyribose, phosphoric acid, and a nitrogen base called?

The structure formed by deoxyribose, phosphoric acid, and a nitrogen base is referred to as a nucleotide. This is a fundamental unit of DNA. Deoxyribose is the sugar component that forms part of the backbone of the DNA molecule. The phosphoric acid contributes to the phosphate backbone, which links multiple nucleotides together through phosphodiester bonds. The nitrogen base, which can be adenine, thymine, cytosine, or guanine, carries the genetic information.

When nucleotides link together, they form long chains, which ultimately constitute the entire DNA molecule. The specific order of these nitrogen bases encodes genetic information, making nucleotides essential for the understanding of genetics and heredity. Other options like amino acids, chromosomes, or genes do not describe this particular structure; amino acids are the building blocks of proteins, chromosomes are structures containing DNA, and genes are specific sequences of nucleotides that code for proteins or traits.