How is Information Stored

How is Information Stored - How is Information Stored? The...

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How is Information Stored? The diagram below shows that one strand of the DNA double-helix serves as a template for the construction of mRNA. The sequence of nucleotides in this DNA strand is complimentary (opposite) the sequence in mRNA. The diagram also shows that the sequence of nucleotides in mRNA determines the amino acids in the protein. For example GUG in mRNA (or CAC in DNA) codes for valine (see below). The strand of DNA that contains the genetic code is called the anti-sense strand. It is often referred to as the template strand. The other strand (the sense strand) is not used. Notice that the sense strand has the same base sequence as mRNA except that mRNA has U instead of T. The codes in DNA are copied to produce mRNA. Each three-letter code in mRNA (called a codon ) codes for one amino acid. The sequence of amino acids in proteins is therefore most directly determined by the sequence of bases in mRNA, which in turn, are determined by the sequence of bases in DNA. There are four letters in the genetic alphabet (A, T, G, and C) and each codon contains three
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How is Information Stored - How is Information Stored? The...

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