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NUCLEIC ACIDS Nucleic savages ar involved in the storage and transfer of familial in make believeation in all living organisms, including the simplest viruses. There atomic number 18 2 types of nucleic acid in cells, Deoxyribonucleic acid ( deoxyribonucleic acid) and Ribonucleic acid (ribonucleic acid). Nucleic acids argon so named because DNA was 1st uninvolved from nuclei, but both DNA and ribonucleic acid also conk in former(a) parts of the cell, e.g. DNA is also appoint in mitochondria and chloroplasts, whilst RNA is also put up in the cytoplasm, particularly at the ribosomes. both DNA and RNA atomic number 18 polymers, the monomeric units being called nucleotides. DNA and RNA atomic number 18 therefore polynucleotides. There are quintet divers(prenominal) nitrogen-containing organic bases present in nucleic acids: adenine (A), guanine (G), wiz C (C), thymine (T) and uracil (U). A, T, C and G are found in DNA. A, U, C and G are found in RNA (ura cil replaces thymine here). The nitrogenous bases belong to devil polar chemical families. Adenine and guanine are purine bases and conduct a double-ringed complex body part. Cytosine, thymine and uracil are pyrimidine bases and have a single-ringed structure The conspiracy of a wampum and a base forms a flux called a nucleoside. The profit of a phosphate group to this structure forms the nucleotide. Different nucleotides are formed according to the sugar and bases used. Cells ceaselessly produce nucleotides and these form a pool from which nucleotides can be used up as required for manufacturing DNA, RNA or a word form of other substances.

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