“Sorry but I don’t grasp what is being said here? Am I understanding properly that Dor Yeshurim can not test for LOTS?”
I think by now this question has been answered, but I want to add one more point- in the interest of maintaining privacy, and avoiding stigmas, Dor Yeshurin’s only goal is to see whether a couple is genetically incompatible- a go ahead means that the boy/girl do not both have mutations in the same gene. It does not address the status of each individual separately- therefore they would not inform this person that he is homozygous for the mutated HEXA, even if their tests can differentiate between 1 and 2 copies of a mutated gene, whether mutation is the same or not. That is the advantage of regular genetic testing where you are informed of your status, but that is not Dor Yeshurin’s goals and they have their reasons for not revealing the full genetic results.