Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). A DNA molecule is composed of two strands.Click to see full answer. In respect to this, what are the 3 parts of a DNA nucleotide? Both deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are made up of nucleotides which consist of three parts: Nitrogenous Base. Purines and pyrimidines are the two categories of nitrogenous bases. Pentose Sugar. In DNA, the sugar is 2′-deoxyribose. Phosphate Group. A single phosphate group is PO43-. Likewise, what is the sugar component of a DNA nucleotide? DNA is a polymer. The monomer units of DNA are nucleotides, and the polymer is known as a “polynucleotide.” Each nucleotide consists of a 5-carbon sugar (deoxyribose), a nitrogen containing base attached to the sugar, and a phosphate group. Likewise, which of the following are components of a DNA nucleotide? Each nucleotide consists of three components: a nitrogenous base: cytosine (C), guanine (G), adenine (A) or thymine (T) a five-carbon sugar molecule (deoxyribose in the case of DNA) a phosphate molecule.What is a nucleotide composed of?A nucleotide consists of three things: A nitrogenous base, which can be either adenine, guanine, cytosine, or thymine (in the case of RNA, thymine is replaced by uracil). A five-carbon sugar, called deoxyribose because it is lacking an oxygen group on one of its carbons. One or more phosphate groups.