• DNA Strand

     

     

     

     

     

     

     

     

     

    Nucleic acid sequence

    Nucleotides

    Nucleic acids consist of a chain of linked unites called nucleotides. Each nucleotide consists of three subunits: a phosphate group and a sugar (ribose in the case of RNA, deoxyribose in DNA) make up the backbone of the nucleic acid strand, and attached to the sugar is one of a set of nucleobases.

     

    Biological significance

    In biological systems, nucleic acids (Wikipedia Article about DNA ) contain information which is used by a living cell to construct specific proteins.  The sequence of nucleobases on a nucleic acid strand is translated by cell machinery into a sequence of amino acids making up a protein strand.

    The different nucleobases that make up DNA are 

    •    Adenine
    •    Cytosine
    •    Guanine
    •    Thymine

     

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