The Times is to be commended for its well-taken points in its editorial (May 14) regarding the implications and importance of mapping the human genome. However, the big picture presented was marred by a few critical details. The corrections stand as follows.
DNA is not a sequence of amino acids, but rather a sequence of nucleotides, each of which consists of (1) a ribose sugar, (2) a phosphate, and (3) a nitrogen-containing base, which may or may not be an amino acid.
