JOTI / SCIENCE PHOTO LIBRARY JOTI / SCIENCE PHOTO LIBRARY
Editorial use only.
Down's syndrome boy. Seven-year- old boy and his sister during a session with a speech therapist at home. Speech therapy is used to help his speech development. Down's syndrome is a chromosomal abnormality resulting in mental handicap and a characteristic physical appearance. The genetic defect concerns chromosome number 21, as there are three of these chromosomes instead of the normal two. For this reason the disorder is also called trisomy 21. The main physical features are slanted eyes, a flat nose on a round head and abnormalities of the palms of the hands and the soles of the feet.
Model release available. Property release not required.