What is the correct order of DNA levels of organization?

The correct order of DNA levels of organization begins with nucleotides, which are the building blocks of DNA. Each nucleotide consists of a sugar, a phosphate group, and a nitrogenous base. When nucleotides polymerize, they form a single strand of DNA. This single strand can then pair with another complementary strand to create a double helix structure, an iconic representation of DNA.

As multiple double helixes are organized, they form structures known as chromosomes. Chromosomes consist of condensed DNA that is organized into discrete units, allowing for the efficient packaging of genetic material during cell division. Finally, all of an organism's chromosomes collectively make up the genome, which encompasses the full set of genetic information necessary for that organism.

This progression from nucleotides to a genome correctly illustrates how DNA is structurally organized and functional on increasing complexity.