Down syndrome, a congenital chromosomal disorder that causes physical anomalies and developmental delays, affects approximately 1 in 700 to 800 people, the Mayo Clinic reports. People with Down syndrome have an extra copy of chromosome number 21....
Genetic diseases occur in 3 to 4 percent of all babies born according to information provided by Net Wellness. Genetic diseases are caused by damage to or destruction of one or more genes, which are specific segments of DNA (the fundamental...
Down syndrome, a genetic defect that is beyond the control of the parent, occurs when there is an extra copy of the 21st chromosome in all or some of the cells in your body. Chromosomes are structures made from your unique DNA or genetic...
According to the National Institute of Neurological Disorders and Stroke, Moebius syndrome is a rare birth defect that affects the sixth cranial nerve, which moves muscles of the face, and the seventh cranial nerve, which moves eyes side-to-side....