Reproductive Quiz #26, Sex chromosome Disorders 

1. A 17-year-old male is brought to the clinic by his parents due to lack of development of secondary sexual characteristics. Physical examination reveals small, firm testes, and laboratory tests show elevated levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH). Karyotype analysis indicates the presence of an extra X chromosome. Which of the following is the most likely diagnosis? 

Question 1 of 5

2. A newborn female presents with lymphedema of the hands and feet, a webbed neck, and a low posterior hairline. Chromosomal analysis reveals a 45,X karyotype. Which of the following cardiovascular anomalies is this patient most at risk for?

Question 2 of 5

3. During a genetics lecture, a medical student learns that individuals with a certain sex chromosome disorder are phenotypically male but have a 46,XX karyotype due to translocation of SRY gene. Which of the following conditions does this description best fit?

Question 3 of 5

4. A couple is concerned about their 14-year-old son, who has been displaying aggressive behavior and learning difficulties. Physical examination reveals acne, tall stature, and large teeth. A karyotype analysis shows 47 chromosomes, with an extra Y chromosome. Which of the following is the correct diagnosis?

Question 4 of 5

5. A 16-year-old female presents with delayed puberty and no development of secondary sexual characteristics. She has a tall stature, with long legs and a short torso. Ultrasound reveals streak ovaries, and karyotype analysis shows 47,XXX. Which of the following conditions is this patient most likely to have?

Question 5 of 5


 

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