In RNA, the thymine is replaced by uracil (U). RNA has four bases, Adenine and Guanine (both purines), and Uracil and Cytosine (both pyrimidines). 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. During RNA synthesis, the phosphate group of a new ribonucleotide is attached by the enzyme RNA polymerase to the 3' carbon of a ribonucleotide. DNA is a type of nucleic acid made up of many subunits called nucleotides. a mistake in DNA sequence. Section 3.3. The five-carbon sugar ring and the content of the nitrogenous base between DNA and RNA are slightly different from each other. b. a nitrogenous base. These bases are crucially important because the sequencing of them in DNA and RNA is the way information is stored. ... a nitrogen-containing base found in RNA (but not in DNA) and derived from pyrimidine. A. Adenine B. Cytosine C. Guanine D. Thymine Feedback: Correct. On the basis of monomeric unit composition, they can be either DNA or RNA. Both the purines have two rings in their molecular structure, while the pyrimidines have a single ring only. Each nucleotide has three parts: a 5-carbon ribose sugar, a phosphate group and a nitrogenous base. There are four nitrogenous bases found in RNA: adenine, guanine, cytosine, or uracil. RNA molecules are polymers of nucleotides joined to one another by covalent bonds between the phosphate of one nucleotide and the sugar of another. Explanation: Adenine and guanine are called purines. There are four nitrogenous bases in the DNA, which are … The correct answer: The nitrogenous base which is associated with RNA but not found in DNA is Uracil.. 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. A nitrogenous base is simply a molecule that contains nitrogen and has the chemical properties of a base. 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). mutation. These linkages are called phosphodiester linkages. Four different types of nitrogenous bases are found in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G). Answer: There are four nitrogeneous bases used in RNA: Adenine, guannine, cytosine and uracil. Which nitrogenous base found in DNA and RNA pairs with guanine? Nitrogenous Bases. The nucleotides for DNA go by the name of Deoxyribo-nucleotides. 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