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.
I know that some of you went to school and got a degree in Interior Design, while some did not. I know plenty of designers that have been successful going both routes. Design is all in the details, and sometimes individuals just have that eye that can bring together a room nicely. I posted here about my recent decision to pursue a Fine Arts Degree in Interior Design from the Art Institute of Houston. I couldn't be more thrilled about this- mainly, because I am finally taking a step of faith and obeying my inner pull towards design!