Bioinformatics analyzes vast amounts of genomic and protein sequence data using computers and algorithms to understand the fundamental processes of life. It has become a key tool in biotechnology for applications like drug discovery. While DNA sequences life's code, molecular networks and regulatory interactions are more complex than once thought, with RNA and proteins also playing important roles before and after DNA. Continued advances in sequencing technology and data integration across multiple fields will be needed to fully unravel these biological systems.