Trisomies 13/18/21, Y chromosome assignment, X/Y aneuploidies
Autosomal aneuploidies:
Trisomy 21 - Down syndrome
Trisomy 18 - Edwards syndrome
Trisomy 13 - Patau syndrome
Sex chromosome aneuploidies:
Turner syndrome - monosomy X
Triple X syndrome - XXX
Kleinfelter's syndrome - XXY
Jakob's syndrome - XYY
Determination of the sex of the fetus - Y chromosome