Quantitative genetics is a branch of genetics that focuses on understanding the genetic basis of complex traits, such as height, intelligence, or disease susceptibility, that are influenced by multiple genes and environmental factors. This field uses statistical methods to study the inheritance of these traits, estimate the contributions of genetic and environmental factors, and predict the outcomes of genetic combinations. Researchers in quantitative genetics often use mathematical models to analyze data from breeding experiments, twin studies, and genome-wide association studies to uncover the genetic mechanisms underlying complex traits. This research area plays a crucial role in fields such as agriculture, medicine, and evolutionary biology.