(Definition of âcentralâ from the Cambridge Business English Dictionary Â© Cambridge University Press)
Other combinations of the atoms form the four bases: thymine (T), adenine (A), cytosine (C), and guanine (G). These bases are the rungs of the DNA ladder. (It takes two bases to form a rung -- one for each side of the ladder.). A sugar molecule, a base, and a phosphate molecule group together to make up a nucleotide.Nucleotides are abundant in the cell's nucleus. Nucleotides are the units which, when linked sugar to phosphate, make up one side of a DNA ladder.ther combinations of the atoms form the four bases: thymine (T), adenine (A), cytosine (C), and guanine (G). These bases are the rungs of the DNA ladder. (It takes two bases to form a rung -- one for each side of the ladder.). A sugar molecule, a base, and a phosphate molecule group together to make up a nucleotide.
DNA is composed of nucleotides bounded together by a backbone and connected at the center by hydrogen bonds. A nucleotide is made up of three parts: a phosphate group, a 5 carbon sugar (deoxyribose in DNA), and a nitrogenous base (adenin, thymine, guanine or cytosine).DNA is a nonparallel molecule, so the composition of the backbone is a combination of the phosphate and sugar molecule that composes the nucleotide.NA is composed of nucleotides bounded together by a backbone and connected at the center by hydrogen bonds. A nucleotide is made up of three parts: a phosphate group, a 5 carbon sugar (deoxyribose in DNA), and a nitrogenous base (adenin, thymine, guanine or cytosine).