6 doctors weighed in:
Is williams syndrome a gene or chromosomal mutation ?
6 doctors weighed in

Dr. Jay Park
Pediatrics
2 doctors agree
In brief: Microdeletion
Williams syndrome is caused by small loss (deletion) of genetic material from long arm of chromosome number 7.

In brief: Microdeletion
Williams syndrome is caused by small loss (deletion) of genetic material from long arm of chromosome number 7.
Dr. Jay Park
Dr. Jay Park
Thank
1 comment
Dr. Fred McCurdy
thanks for the simplification
Dr. Fred McCurdy
Pediatrics - Nephrology & Dialysis
1 doctor agrees
In brief: William's Syndrome
Quoting from http://www.
Williams-syndrome.Org/faq#1, "williams’s syndrome is caused by the spontaneous deletion of 26-28 genes on chromosome #7. The deletion occurs at the time of conception. In most families the child with williams’s syndrome is the only one to have the condition in his or her entire extended family.".

In brief: William's Syndrome
Quoting from http://www.
Williams-syndrome.Org/faq#1, "williams’s syndrome is caused by the spontaneous deletion of 26-28 genes on chromosome #7. The deletion occurs at the time of conception. In most families the child with williams’s syndrome is the only one to have the condition in his or her entire extended family.".
Dr. Fred McCurdy
Dr. Fred McCurdy
Thank
1 doctor agrees
In brief: Missing genes.
Rare condition caused by missing genes.
Parents may not have a family history of the condition. Cause is random. Occurs in 1:8, 000 births.

In brief: Missing genes.
Rare condition caused by missing genes.
Parents may not have a family history of the condition. Cause is random. Occurs in 1:8, 000 births.
Dr. Michael H. T. Sia
Dr. Michael H. T. Sia
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