Genetic makeup refers to the unique set of genes that an individual inherits from their parents. These genes are segments of DNA that carry instructions for building and maintaining the body. Each person's genetic makeup contributes to their physical traits, such as eye color and height, as well as their susceptibility to certain diseases. The study of genetic makeup is a key aspect of genetics, which explores how traits are passed down through generations. Advances in genomic research have allowed scientists to better understand the role of genetics in health and development, leading to potential breakthroughs in personalized medicine.