Introduction
Down syndrome also referred to as trisomy 21 is a genetic abnormality that is associated with a chromosomal condition characterized by the availability of a third chromosome 21 copy either in part or fully . The disorder is usually manifested by slow cognitive capabilities, slight to moderate intellectual debility, hypotonia in infancy and weak muscle tenor. . Physical characteristics encompass distinctive facial characteristics such as a flat facial outline, eyes slanting upwards, macroglossia, epicanthic eyelids, flat nasal bridge, small limbs, petite body frame, palmer crease, microgenia and smaller heads compared to the body frame .
The slow cognitive capabilities are usually manifested by a major delay ...