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.
To become a decorator you donât need an extensive education or a fancy degree, just a good eye and a passion for the job. However, if you are interested in interior design, you will need to take specialized courses and gain the proper licensing from the state, depending on which state you are in.