If it is a long run, 16 gauge is preferred. If the run is very short, you probably can use 18 gauge with no apparent difference in sound. But the cost difference is fairly small, so 16 gauge is preferred. There is no shielding on speaker wire, so the covering is of little import.
The backbone of the DNA strand is made from alternating phosphate and sugar residues. The sugar in DNA is 2-deoxyribose, which is a pentose (five-carbon) sugar. The sugars are joined together by phosphate groups that form phosphodiester bonds between the third and fifth carbon atoms of adjacent sugar rings.
Sugar Backbones. DNA and RNA are made up of subunits called nucleotides. All nucleotides have a sugar backbone, a phosphate group, and a nitrogenous base. Both DNA and RNA have sugar âbackbonesâ that are made up of five carbon molecules. However, they are different sugars that make them up. DNA is made up of deoxyribose and RNA is made up of ribose. Those sound pretty similar and their structures are very similar.