How is genetic information structured in DNA?

Genetic information in DNA is structured in a double helix formation of nucleotide sequences. This structure consists of two long strands of nucleotides that twist around each other, resembling a spiral staircase. Each nucleotide is made up of a phosphate group, a sugar molecule (deoxyribose), and a nitrogenous base (adenine, thymine, cytosine, or guanine).

The sequence of these nitrogenous bases encodes the genetic information, and the specific pairing of bases—adenine with thymine and cytosine with guanine—stabilizes the double helix structure. This arrangement allows DNA to store and replicate genetic information efficiently, as well as to serve as a template during the processes of transcription and translation, leading to protein synthesis.

In contrast to the correct answer, the single strands of nucleotides and the triangular structure do not accurately represent the structure found in DNA. Additionally, while a linear sequence of amino acids relates to proteins and their synthesis, it does not describe the structural configuration of DNA itself.