1966 The Genetic code was discovered: scientists are now able to predict characteristics by studying DNA. This leads to genetic engineering, genetic counseling. 1972 Paul Berg(1926-)of the U.S. produced the first recombinant dna molecule1966 The Genetic code was discovered; scientists are now able to predict characteristics by studying DNA. This leads to genetic engineering, genetic counseling. 1972 Paul Berg (1926- ) of the U.S. produced the first recombinant DNA molecule