Philosophy 6 Physics 5 Genetics 4 History 4 Biochemical genetics-- Molecular Biology 3 Cell Biology-- Cytology 3 Ecology-- Biodiversity-- Conservation 3 Economic systems and theories 3 Economics 3 Enzymes-- Coenzymes-- Cofactors-- Enzymology 3 Evolution-- Life Science 3 Intellectual property 3 Islam and politics 3 Koran and Hadith 3 Nanotechnology 3 Proteins-- Peptides-- Amino acids-- Hemoglobin 3 Religion 3 Solid state physics; Properties of matter 3 13c 2 Agricultural economics 2 Artificial Intelligence 2 Arts 2 Atomic and Nuclear physics 2 Biogeography 2 Biotechnology 2 Cloning 2 Criminal law 2 DNA (Deoxyribo Nucleic Acid) 2 Darwinism-- Theories of evolution-- Inheritance 2 Dictionary--Encyclopaedia--Handbook 2