History 159 Biochemistry 117 Nucleic acids 85 Enzymes 70 Nucleic Acid 69 Proteins 63 Amino acids 46 Molecular biology 42 Lipids 39 Proteins-- Peptides-- Amino acids-- Hemoglobin 37 India 36 methods 36 Biography 35 Nucleic Acids 35 DNA 34 Biochemica et Biophysica Acta (Journal) 31 Biography-Heads of states of India 30 Dissertations, Academic (Ph.D) 30 Soil Science and Agricultural Chemistry 30 Cytology 29 Agronomy 27 Biotechnology 27 Chemistry 27 Foreign trade regulation 27 Politics and government 27 Biology 26 ICAR 26 Philosophy 26 soil acidity 26 Carbohydrates 25