What is DNA made of?

Question

Daniel Arnold · Accepted Answer

The DNA is made up of phosphate, pentose sugar and nitrogenous bases.

The double helix long chain of DNA is made up of phosphate, pentose sugar and four types nitrogenous bases. The nitrogenous bases are adenine, guanine, cytosine and thymine.
The phophate group of the strand binds two adjoining pentose sugars. The pentose sugar is in turn joined with the nitrogenous bases either purines or pyramidines based on the opposite complementary strand.
The nitrogenous bases are joined by the the complementary nitrogenous bases of the opposite complementary strand either by two or three hydrogen bonds. The two complementary strands form the double helix DNA strand with 20 angstron diameter.
Thank you

Ivy Acosta · Answer

undefined DNA is made of nucleotides, consisting of a phosphate group, deoxyribose sugar, and one of four nitrogenous bases: adenine, thymine, cytosine, or guanine.

Piper Anderson · Answer

undefined DNA, or deoxyribonucleic acid, is made up of nucleotides. Each nucleotide consists of three components: a sugar molecule (deoxyribose), a phosphate group, and a nitrogenous base. There are four types of nitrogenous bases found in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair up with each other in specific combinations: adenine with thymine, and cytosine with guanine. This pairing forms the basis of the DNA double helix structure, with the sugar-phosphate backbones on the outside and the paired nitrogenous bases forming the "rungs" of the ladder-like structure.