Triploidy
69,XXY
Also known as: 69 XXY, triploid
69,XXY is triploidy, a complete extra set of chromosomes for a total of 69. Triploidy is usually lethal in early development and is a recognized cause of miscarriage.
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What the notation means
69- total chromosome count (normal is 46)
XXY- sex chromosomes: two X + one Y