 genomics proteomics and metabolomics. What is genome and what is genomics? The complete set of DNA found in each cell is called as genome and when we study the genome the study is called as genomics. While on the other hand the complete set of proteins found in each cell is called as proteome and the study is called as proteomics. When we study the complete set of genome it is called as genomics and when we study the complete set of proteins of a cell it is called as proteome and the study is called as proteomics. Why we study proteomics? Protein concentrations may be different than the gene expression due to post translational modifications. So it is necessary to study the proteome and because the production of the protein can be different because there is a process in the eukaryotes and also in prokaryotes which is called as post translational modification. Due to post translational modification the protein concentrations as well as the activity of the proteins can be different in a cell. So to study the proteins or the whole protein which is called as proteome it is called as proteomics. While the third terminology is called as metabolomics. Metabolomics is the complete set of metabolites which are found in each cell and the study is called as metabolomics. So metabolome they are present in each cell and the study is called as metabolomics using high throughput mass spectrometry is used to analyze the metabolic components of the cell. Metabolomics is useful for determining the effects of the environment and gene transformation on the metabolism of the plants as well as the metabolism of the animals. So if we conclude that what is genomics, proteomics and metabolomics? Genomics is the study of the genome which is present in each cell of the organism. Proteomics is the study of the proteome all the protein which are present in the cell and metabolomics is the study of the metabolites which are present in the cell. To study all these three things means genomics, proteomics and metabolomics bioinformatics is the key to understand plethora of information and modeling the cell. So bioinformatics are the tools of bioinformatics are required or needed to study genomics, proteomics and metabolomics.