Zinc DNA refers to the use of zinc ions in the structure of DNA molecules. Zinc is a transition metal that can interact with DNA through coordination bonds, where the zinc ion binds to specific sites on the DNA molecule.

Zinc ions can stabilize the structure of DNA by forming complexes with specific DNA sequences. These complexes can affect the DNA's conformation, stability, and function. For example, zinc fingers are structural motifs found in many DNA-binding proteins, where zinc ions coordinate with specific amino acids to form a finger-like structure that interacts with DNA.