Hello, and welcome to CF! I pray that you are blessed by being here!
The Bible doesn't discuss such chromosomal abnormalities.
God made male and female, in His image, created perfectly.
However, with the fall of mankind, death entered creation, sin affected the world, and this affected soooooooo many things - God's perfect creation began to have problems of various kinds. Sickness, genetic degradation, chromosomal abnormalities, and so on are the result. We are all affected in numerous ways to varying degrees.
Your condition is the result of the lack of continuing perfection in the world. It is not your fault, and it is not a sin. No one ought to blame you or look down on you for it.
However, it represents a cross for you to bear. We all have them, heavy ones, smaller ones, life is full of problems and trials. But I suspect yours is a rather heavy one.
Unfortunately no, there is nothing that tells you what you should do, as far as Scripture. You are in the same position as all of us - if you desire a partner, marriage is the only honorable path. If you happen not to desire one, that would probably be much easier for you in your case. But whichever is true of you, is the situation you are in.
But you are not sinning by having been born the way you are. How to proceed would really be a matter to discuss with your pastor/priest, if you have further questions.
Again, welcome to CF! Let us know (ambassadors, or any staff member - tags under our names) if you have any questions, or need help navigating the forums, and we will be glad to help.