Write the chemical structure of a typical amino acid by labeling its chemical group. Explain the components of neuclic acid.
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I can't write diagram of a chemical structure of amino acid so you have to put this question in Google and you will get the also diagram
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cells. Two kinds of nucleic acids are found in cells:• RNA (ribonucleic acid) is found mainly in the cytoplasm of living cells.• DNA (deoxyribonucleic acid) is found primarily in the nucleus of cells.Both RNA and DNA are large polymers containing repeating structural units, ormonomers, called nucleotides.12.1 Components of Nucleic AcidsA nucleotide is composed of three units: an organic base, a sugar, and a phosphate.A) Organic BasesThe organic bases found in nucleic acids are derivatives of pyrimidine or purine.Pyrimidine is a six-membered heterocyclic ring. A heterocyclic ring is a ring compoundcontaining atoms that are not all identical.Purine is a fused-ring compound containing a six-membered ring connected to a fivememberedring.
The first isolation of what we now refer to as DNA was accomplished by Johann Friedrich Miescher circa 1870. He reported finding a weakly acidic substance of unknown function in the nuclei of human white blood cells, and named this material "nuclein". A few years later, Miescher separated nuclein into protein and nucleic acid components. In the 1920's nucleic acids were found to be major components of chromosomes, small gene-carrying bodies in the nuclei of complex cells. Elemental analysis of nucleic acids showed the presence of phosphorus, in addition to the usual C, H, N & O. Unlike proteins, nucleic acids contained no sulfur. Complete hydrolysis of chromosomal nucleic acids gave inorganic phosphate, 2-deoxyribose (a previously unknown sugar) and four different heterocyclic bases (shown in the following diagram). To reflect the unusual sugar component, chromosomal nucleic acids are called deoxyribonucleic acids, abbreviated DNA. Analogous nucleic acids in which the sugar component is ribose are termed ribonucleic acids, abbreviated RNA. The acidic character of the nucleic acids was attributed to the phosphoric acid moiety.
The first isolation of what we now refer to as DNA was accomplished by Johann Friedrich Miescher circa 1870. He reported finding a weakly acidic substance of unknown function in the nuclei of human white blood cells, and named this material "nuclein". A few years later, Miescher separated nuclein into protein and nucleic acid components. In the 1920's nucleic acids were found to be major components of chromosomes, small gene-carrying bodies in the nuclei of complex cells. Elemental analysis of nucleic acids showed the presence of phosphorus, in addition to the usual C, H, N & O. Unlike proteins, nucleic acids contained no sulfur. Complete hydrolysis of chromosomal nucleic acids gave inorganic phosphate, 2-deoxyribose (a previously unknown sugar) and four different heterocyclic bases (shown in the following diagram). To reflect the unusual sugar component, chromosomal nucleic acids are called deoxyribonucleic acids, abbreviated DNA. Analogous nucleic acids in which the sugar component is ribose are termed ribonucleic acids, abbreviated RNA. The acidic character of the nucleic acids was attributed to the phosphoric acid moiety.
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