A joint study conducted by scientists from the Faculty of Medicine at the Arab American University (Jenin, Palestine), the Faculty of Medicine at the University of Exeter, UK, and Children's National Hospital (Columbus, USA) discovered that mutations in a gene that is responsible for a range of processes which are Vital for the formation of neurons and their access to the correct place in the embryonic stages cause a well-defined developmental disorder that include a distinctive appearance of the face, a small size of the head, a change in the surface of the brain, also known as lis