What does a nucleotide consist of?
A nucleotide consists of a nitrogenous base (adenine, thymine, cytosine, guanine, or uracil) which is connected to a deoxyribose sugar which in turn is bonded to a phosphate. All bonds are covalent bonds within the nucleotide.
A nucleotide can consist of either a purine or pyrimidine. A nucleotide is composed of a phosphate group and a nucleoside (a pentose sugar and a nitrogenous base). However, the nitrogenous base can either be a pyrimidine or a purine. It is a pyrimidine if the nucleotide is a cytosine (C), thymine (T), or uracil (U). It is a purine if the nucleotide is adenine (A) or guanine (G). Note that thymine is only found…
A D.N.A. molecule is consist of two right handed long polynucleotide chain in the form of double helix which are consist of nucleotide they are dexoyribonucleotide and each nucleotide consist of aldopentose sugar of deoxyribose, phosphoric acid and ntrogen containing base( adinine, guanine, cytosine and thymine)
DNA nucleotides: adenine nucleotide, guanine nucleotide, cytosine nucleotide, thymine nucleotide RNA nucleotides: adenine nucleotide, guanine nucleotide, cytosine nucleotide, uracil nucleotide Base-pairing in DNA: adenine and thymine, guanine and cytosine Base-pairing in RNA: adenine and uracil, guanine and cytosine