Question

multiple choice question
dna has a structure that is called a(n) ______.
o helix turn helix
o triple helix
o double helix
o beta helix
o alpha helix

Explanation:

DNA is well - known to have a double - helix structure proposed by Watson and Crick. It consists of two polynucleotide chains coiled around each other. The other helix types listed are not the characteristic structure of DNA.

Answer:

C. double helix