What type of structure does dna have when unwrapped from chromosome protein structures?

Double helix structure

Explanation:

The DNA is composed of two strands which are linked together by hydrogen bond. The two strands are twisted around each other to form a ladder-like, double helix structure.

The structure of the DNA was proposed by Watson and Crick after series of research about the nature and structure of the DNA.

c-reactive protein (crp) is an acute phase protein belonging to pentraxin family of proteins, whose levels increases 1000-fold or more in concentration in blood during the occurrence of an injury, inflammation or tissue death.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.