Cell culture- growing body cells in a laboratory. The artificial environment of the lab is optimized for cell survival and growth. Developed in the early 20th century, cell culture research has found applications in disease modeling and drug development. It has also enabled cost-effective and large-scale manufacturing of vaccines, biosimilars, and antibodies. Wide use of cell culture has made cell analysis valuable in research. Evaluation of changes in cells after modifying a certain parameter has taken center stage in research. Measuring cell viability, protein compositions, and transcriptomes has become a routine. The easily available microscopes, dyes, and cell-based assays assess cell viability. Flow cytometry, SDS-PAGE, and western blot provide insights into protein content. RT-PCR and microarray, or next-generation sequencing, analyze the transcriptomic-based changes.