Actually, it cannot be prevented since a piece of chromosome 4 is missing. The only way it can be "prevented" is by the sperm and egg to form properly, but that is by random.
It can't be prevented, sorry.
All cancers can be prevented!
No. tornadoes cannot be prevented.
Otosclerosis cannot be prevented.
He prevented a fight from happening
It can be prevented by stopping pollution...
Information spillage can be prevented by:
Acidity can usually be prevented by antacids.
how are infrigements prevented in a certain movie
sod prevented them
Pulmonary stenosis cannot be prevented
It cannot be prevented because they have not made a cure for it.