Recently, advances in molecular biology have enabled scientists to uncover new levels of complexity in the structure of molecules and to develop cutting-edge tools and methods to investigate their functions. The field of molecular biology has made it possible to identify the components of biological systems on a molecular level. For instance, the genomes of many organisms have been sequenced, and sophisticated computational algorithms have been developed to assist in deciphering the molecular processes involved in the generation and maintenance of the organism's genetic information. In addition, powerful tools such as gene editing and high-throughput sequencing have been developed that allow scientists to investigate and manipulate cellular systems in unprecedented ways. The ability to manipulate molecules at the sub-cellular level has led to breakthroughs in understanding and treating many diseases and to the promise of personalized medicine. For instance, CRISPR-Cas9 gene editing technology has been used to edit genes associated with genetic disorders. In addition, genomes are being used to develop drugs to target specific diseases, such as cancer, and to design therapeutic strategies that can be tailored to individual patients. At the same time, molecular biology has enabled the study of the diversity of living systems on a more global scale. For example, the sequencing of additional genomes allows us to compare the similarities and differences between them. In addition, studies of metabolic networks have revealed how complex systems of gene regulation can drive the growth and development of cells and organisms.