Most males have one Y and one X chromosome. Having extra X chromosomes can cause a male to have some physical traits unusual for males. Many men with an extra X chromosome are not aware that they have it, and they lead normal lives. Klinefelter syndrome occurs in about 1 out of 1,000 males.
Meaning: The Greek name Nastassja means-a form of Nastasia.Rating:eaning: The Greek name Nastassja means-a form of Nastasia. Rating:
Meaning of Sonja: Sonya is a Slavic variant of the Russian name Sonya, which is a variant of the Greek name Sophia, meaning wisdom.ts origin is  Slavic and Scandinavian variant of the Russian name Sonya . Sonja is a form of Sonya and is generally pronounced like  SAWN yah  and  ZAWN yah . This name is mostly being used as a girls name.