For a little more than a century after the formulation of Mendel's laws, genetics has shown fantastic development [The DNA Dilemma, Dec. 24]. Agriculture and medicine have been the great beneficiaries of those discoveries. Research on human genetics, slow in the beginning, developed at a meteoric pace in the past half-century. However, while these great developments have been very successful in detecting genetic defects (important in trying to treat or correct them as early as possible), practically nothing has been achieved in the more difficult detection of positive traits, like the capacity for art, science or other fields of...
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