Transcriptomics is an examination of the RNA transcripts generated by the genotype. Detection of diseases and profiling has extensively used transcriptomic techniques. Determination of the variants is essential for the interpretation of disease association studies, since these regulatory elements are significant in human disease. Transcriptomic research has mostly concentrated on the host or the pathogen. Identification of the genes and processes that react to and mitigate biotic and abiotic environmental stresses is made possible by transcriptomics. Identification of the roles played by genes responsible for certain phenotypes have been made possible by all transcriptomic approaches. Transcriptomics is most frequently used to study mRNA information of a cell.