This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Malformation of the Female Generative Organs, Subject name: Gynaecology & Obstetrics
[{'content': 'Vaginal atresia is associated with all except: \nSelect and explain. \nA. Lack of development of lower part of vagina, B. Normal secondary sexual characteristic, C. Female external genitalia, D. Presence of cervix', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is d, i.e Presence of cervixRef: Williams gynae 3/e, pg 419* Vaginal atresia is a condition where the urogenital sinus fails to develop hence lower part of vagina is absent & is replaced by a fibrous strand.* Genotype of female =46XX* Gonads = Normal ovaries* Secondary sexual characteristics are normal* Upper reproductive tract is normal (uterus, cervix, etc.)IOC : MRINote: Presence of cervix distinguishes this condition from mullerian agenesis.', 'role': 'assistant'}]