Set of chromosomes

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... I do not know to what doctor would be more correct to ask this question, therefore on the discretion I set to you!
Question such: if the person instead of a double set of chromosomes has only chromosome X, what its or his physical development (as he looks or appears); and if at the person set XXY, what he?
Thanks for attention!

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To surgeons (at least, Russian) questions on chromosomes to set it is not necessary:-) Perhaps, you ask this question to any search machine or car of the Internet: though JAhu though Guglju, though Altaviste... For certain receive a lot of the versatile information from which, at the certain diligence, can quite take necessary.
And me understand correctly: at us in fact here nevertheless not the house of sanitary education - we answer questions on absolutely concrete patients, and especially on public principles...