Absolute location describes the position of a place in a way that never changes, no matter your location. The location is identified by specific coordinates. The most common coordinate system is longitude and latitude, which describes a specific place on the earth's surface.
Nucleic Acids. Nucleotides join together through phosphodiester linkages between the 5' and 3' carbon atoms to form nucleic acids. The 3' -OH of the sugar group forms a bond with one of the negatively charged oxygens of the phosphate group attached to the 5' carbon of another sugar.
In DNA, however, it loses two of these phosphate groups, so that only one phosphate is incorporated into a strand of DNA. When nucleotides are incorporated into DNA, adjacent nucleotides are linked by a phosphodiester bond: a covalent bond is formed between the 5â phosphate group of one nucleotide and the 3â-OH group of another (see below). In this manner, each strand of DNA has a âbackboneâ of phosphate-sugar-phosphate-sugar-phosphate. The backbone has a 5â end (with a free phosphate) and a 3â end (with a free OH group). In the structure below, each nucleotide is drawn in a different color, for clarity.