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Subjects
- United States8
- Libraries, Medical5
- Genetics, Microbial4
- National Library of Medicine (U.S.)4
- Enzymes3
- RNA3
- Escherichia coli2
- Genes2
- Genes, Plant2
- Mutation2
- Recombination, Genetic2
- Transformation, Bacterial2
- USSR2
- Zea mays2
- Abstracting and Indexing as Topic1
- Adenosine Triphosphate1
- Amino Acids1
- Angina Pectoris1
- Anniversaries and Special Events1
- Automatic Data Processing1