The supercoiled structure formed by the further spiral of DNA molecules is called the tertiary structure of DNA.Mentioned in the article inhibitors Born with strong vitality, you can turn a cocoon into a butterfly and become the best yourself after wind and rain. https://www.all-chemistry.com/
The DNA of most prokaryotes is a covalently closed circular double helix, and its tertiary structure is twisted.
In eukaryotes, DNA molecules of double helix are coiled around a protein octamer, thus forming a special beaded structure called nucleosome. Nucleosome structure belongs to the tertiary structure of DNA.