(Image from wikipedia – https://en.wikipedia.org/wiki/Nucleotide)
|Primary structure||The sequence of nucleotides that are held together by phosphodiester bonds in a certain order.|
|Secondary structure||The interactions of the two strands of DNA. Remember that DNA consists of a two strands that form the double helix, this double helix structure is held and maintained by the hydrogen bonds that form between the nitrogenous basis between the two DNA strand.|
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