Staphylococcygeus comes from both the father and the mother, with both sexes having some influence. Gestational trophoblastic disease, which can be divided into two types: complete and partial, is a benign disease, but may develop into gestational trophoblastic tumor. 1. Complete hyperemesis gravidarum. Complete staphylococci have a diploid karyotype, all of which are of paternal origin, with 90% of them having a karyotype of 46xx and another 10% having a karyotype of 46xy. The chromosomal genes in complete staphylococci are of patrilineal origin, but their mitochondrial DNA is of maternal origin. 2. Partial gravida. Over 90% of the chromosomal karyotypes in partial staphylococci are triploid, the most common karyotype is 69xxy, and the extra set of chromosomes is of paternal origin.