A syndrome that causes deaf-blindness and is characterized by a combination of physical anomalies including cranial nerve damage, heart defects, blockage of the air passage from the nose to the throat, and retardation in growth and intellectual development present at birth is
A)Usher syndrome.
B)Down syndrome.
C)Asperger syndrome.
D)CHARGE syndrome.

Question

Quizplus · Accepted Answer

The syndrome described in the question is CHARGE syndrome. It is characterized by a combination of physical anomalies such as coloboma of the eye, heart defects, atresia of the choanae, retardation of growth and/or development, genital and/or urinary abnormalities, and ear abnormalities and deafness. Usher syndrome is a genetic disorder that causes hearing loss and visual impairment, but does not necessarily involve the other physical anomalies mentioned in the question. Down syndrome is a genetic condition caused by the presence of an extra copy of chromosome 21 and is not typically associated with deaf-blindness. Asperger syndrome is a neurodevelopmental disorder characterized by difficulties in social interaction and communication, but is not associated with deaf-blindness.

A Syndrome That Causes Deaf-Blindness and Is Characterized by a Combination