I would like to state that I had a karyotype in 1976 and learned that I have XXY sex chromosomes. How many people have learned that their sex chromosomes are different then the standard XX for females and XY for males? Persons with XXY ones are sterile and can not pass their DNA on to children.
I want to know when I pay to get my x-dna tested - will both my XX's be tested or will I need to pay twice? I've already had my y-dna test through the National Geographic Genomic Project and they confirmed what I already knew of my father's lineage.
I note that people use X and Y chromosomes instead of "sex chromosomes." Are they the same? I'm also wondering how women with androgen insensitivity syndrome (AIS) fair with these tests since they have XY sex chromosomes?
I guess that was four questions. Many people don't realize that there are many different sex chromosome combinations (XXX, XO, XXXY, XXXY/XY, XYY, etc.)