Polygenic traits are traits determined by the combined effect of more than one pair of genes. Human stature is an example of this trait. The size of all body parts from head to foot combined determines height. The size of each individual body part are determined by numerous genes.
Although you don't necessarily have to major in interior design, a bachelor's degree or higher in the discipline provides the best foundation for a career, according to the Foundation for Interior Design Education and Research.
Product Designer Education Information. The minimum education requirement for product designers is usually a bachelor's degree. Common majors include industrial design, engineering and architecture. Many programs require that students complete one year of basic art and design courses, such as principles of design and sketching, during their freshman year.