A nucleic acid double helix refers to the structure of DNA (deoxyribonucleic acid), which is composed of two long strands of nucleotides twisted around each other in a spiral shape. This double helical structure is critical for the storage and transmission of genetic information. ### Key Features of the Nucleic Acid Double Helix: 1. **Strands**: The DNA double helix consists of two complementary strands that run antiparallel to each other.
