Question

During a medical investigation, An infant was found to possess an extra chromosome $21$. Describe the symptoms the child likely to develop later in the life.

Answer 1

Child is suffering from Down syndrome, also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21.

Following are the symptoms of Down syndrome:-

The affected individual is short statured with small round head, furrowed tongue and partially open mouth.

Palm is broad with characteristic palm crease.

Physical, psychomotor and mental development is retarded