Single-Cell Sequencing is a powerful technique that allows scientists to analyze the genetic material of individual cells. Unlike traditional sequencing methods that average the genetic information from many cells, this approach provides detailed insights into the unique characteristics and behaviors of each cell. This is crucial for understanding complex biological systems, such as tissues and tumors, where cell diversity plays a significant role. By examining the genetic makeup of single cells, researchers can identify differences in gene expression, mutations, and cellular responses. This information can lead to advancements in personalized medicine, as it helps in understanding how individual cells contribute to diseases and how they might respond to specific treatments.