On the basis of monomeric unit composition, they can be either DNA or RNA. Answer: There are four nitrogeneous bases used in RNA: Adenine, guannine, cytosine and uracil. ... a nitrogen-containing base found in RNA (but not in DNA) and derived from pyrimidine. b. a nitrogenous base. mutation. Each nucleotide has three parts: a 5-carbon ribose sugar, a phosphate group and a nitrogenous base. The five-carbon sugar ring and the content of the nitrogenous base between DNA and RNA are slightly different from each other. Which nitrogenous base found in DNA and RNA pairs with guanine? These linkages are called phosphodiester linkages. The nucleotides for DNA go by the name of Deoxyribo-nucleotides. a mistake in DNA sequence. The nitrogenous bases form the backbone on the outside of each DNA strand, There are 2 strands in the DNA molecule, & The nitrogenous bases are near the center of the DNA molecule. RNA has four bases, Adenine and Guanine (both purines), and Uracil and Cytosine (both pyrimidines). A nitrogenous base is simply a molecule that contains nitrogen and has the chemical properties of a base. Two complementary strands of DNA come together thanks to hydrogen bonding between the nitrogenous bases that allows DNA to make a ladder-like form that twists into the famous double-helix. A set of five nitrogenous bases is used in the construction of nucleotides, which in turn build up the nucleic acids like DNA and RNA. During RNA synthesis, the phosphate group of a new ribonucleotide is attached by the enzyme RNA polymerase to the 3' carbon of a ribonucleotide. A. Adenine B. Cytosine C. Guanine D. Thymine Feedback: Correct. In RNA, the thymine is replaced by uracil (U). There are four nitrogenous bases found in RNA: adenine, guanine, cytosine, or uracil. Nitrogenous Bases. RNA molecules are polymers of nucleotides joined to one another by covalent bonds between the phosphate of one nucleotide and the sugar of another. DNA is a type of nucleic acid made up of many subunits called nucleotides. Four different types of nitrogenous bases are found in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G). This can be found in the OpenStax Overview of Anatomy and Physiology section. RNA nitrogenous bases include adenine (A), guanine (G), cytosine (C) and uracil (U).The five-carbon (pentose) sugar in RNA is ribose. Section 3.3. The nucleotides consist of three components – a 5 carbon sugar (Ribose in RNA and Deoxyribose in DNA), a phosphate group, and a nitrogenous base (Purines –A and G, Pyrimidines – C, T, and U). Both the purines have two rings in their molecular structure, while the pyrimidines have a single ring only. Explanation: Adenine and guanine are called purines. 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