Genetic engineering Biotechnology 56 Molecular biology 27 Genetic Engineering 22 Recombinant DNA 18 Genetic Engineering, Gene Transfer and Transgenics, (New June 2002) 17 Genetic transformation 13 Genomics 13 Plant Breeding and Genetics 13 Genetically engineered organisms 12 Transgenic plants 12 DNA 11 Molecular genetics 11 Crops 10 DNA, Recombinant 10 Genes 10 Plants 10 Genetics 8 Methodology 8 Gene mapping 7 Genomes 7 Molecular Biology and Molecular Genetics, (Discontinued March 2000, Reinstated and Revised June 2002) 7 Nucleotide sequence 7 Plant breeding 7 Base Sequence 6 Chromosome Mapping 6 Enzymes 6 Metabolism 6 Molecular Biology 6 Biochemistry 5