This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Gynaecology & Obstetrics
[{'content': 'Chromosome number of paial hydatidiform mole most commonly is:- \nSelect and explain. \nA. 46 XX, B. 45 XO, C. 46 XXY, D. 69 XXX', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Complete mole Paial mole No fetal tissue Fetal tissue present in a paial mole 90% are 46, XX, and 10% are 46, XY. All chromosomes are of paternal origin 69, XXX most common , or 69, XXY An Empty oocyte is feilized by a haploid sperm (which then duplicates its chromosomes), or, an empty oocyte is feilized by 2 sperms This results from feilization of a haploid ovum by 2 sperms, both carrying X chromosome mostly Diffuse swelling of Chorionic villi Scalloping not seen Paial Swelling of chorionic villi Scalloping of villi seen There is diffuse trophoblastic hyperplasia Focal hyperplasia of trophoblastic tissue', 'role': 'assistant'}]