Reply To: Should Some People Be Considered "Unmarriable"? Home › Forums › Shidduchim › Should Some People Be Considered "Unmarriable"? › Reply To: Should Some People Be Considered "Unmarriable"? June 23, 2010 4:19 pm at 4:19 pm #687241 YW Moderator-80Member If both parents have the TS gene, each child has a 25% chance of developing TS disease