Microbiology Genetics 34 Viruses 16 Ecology 13 genetics 13 Morphology 12 Cell division 11 Metabolism 11 Bacteria 10 viruses 10 metabolism 8 morphology 8 Chromosomes 7 fungi 7 Fungi 6 Immunology 5 Industrial Microbiology 5 Aquatic Microbiology 4 Dairy Microbiology 4 Food Microbiology 4 General Microbiology 4 Microbial Genetors 4 Sanitary Microbiology 4 Soil Microbiology 4 bacteria 4 cell division 4 ecology 4 microorganisms 4 photosynthesis 4 Algae 3