KROK 1 2019 – Question 152 · KROK (Medicine) · Biology
An 18-year-old girl comes to her physician with concern about her health because she has not achieved menarche. She denies any significant weight loss, changes in mood, or changes in her appetite. She mentions that her mother told her about mild birth defects, but she cannot recall the specifics. Past medical history and family history are benign. On physical examination, the patient is short in stature, has a short and webbed neck and wide chest. Staining of buccal smear reveals absence of Barr bodies in the nucleus of epithelial cells. A urine pregnancy test is negative. Which of the following genetic disorders is the most likely cause of this patient’s condition?
- A. Cri du chat (“cat-cry”) syndrome
- B. Klinefelter syndrome
- C. Patau syndrome
- D. Edwards syndrome
- E. Turner syndrome
Hint
Ask what absent sex chromatin in a phenotypic female implies about her X chromosomes, and match that with the somatic features.
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Biology
- After dehelmintization, a 35-year-old man passed a 3.5 m tapeworm during a bowel movement. A stool examination reveals scolex with four suckers and…
- Biological studies proved that the intensity of testosterone secretion and spermatogenesis varies in men throughout each 24 hours. These biorhythms…
- Histology of the liver detected there a vesicle with chitin and protein membrane, filled with a colorless transparent fluid. What disease can…
- A young woman, a foreign student from Tehran, has made an appointment with the urologist. She complains of the sensation of heaviness in her lower…
- Protein synthesis occurs in several stages. During one of them, messenger RNA is being synthesized on one of the strands of a DNA segment. Name this…
- A patient diagnosed with liver abscess was hospitalized into the surgery department. He has a history of frequent gastrointestinal disturbances…