Genetics is the branch of biology that studies genes, heredity, and genetic variation in living organisms. It explains how traits and characteristics are passed from parents to offspring through DNA, the molecule that carries genetic information. Understanding genetics is crucial for fields like medicine, agriculture, and evolutionary biology. The study of genetics has led to significant advancements, including the development of genetic engineering and biotechnology. These technologies allow scientists to manipulate genes for various purposes, such as creating genetically modified organisms (GMOs) and developing gene therapies for genetic disorders. This field continues to evolve, offering new insights into the complexities of life.