47. Turner syndrome is caused by which chromosomal abnormality, and what is the phenotypic sex of affected individuals?

50. Up to what percentage of the population may have a patent foramen ovale (PFO), and what is the clinical significance in most cases?

57. The primary challenge of immunotherapy in treating cancer is that:

63. Which of the following ECG findings would indicate that an electrical impulse is NOT conducting properly through the AV node — causing a delay between atrial and ventricular contractions?

5. Chordae tendineae and papillary muscles in the heart serve what critical function?

75. True or False: The ductus arteriosus, which connects the pulmonary artery to the aorta in fetal life, serves to allow blood from the right ventricle to bypass the non-breathing fetal lungs and enter the systemic circulation directly.

60. Naked monoclonal antibodies work against cancer through which mechanisms?

32. CEA (carcinoembryonic antigen) is a tumor-associated antigen most associated with which cancer?

56. A ‘balanced translocation carrier’ is an individual who:

48. Which of the following clinical features is characteristic of Turner syndrome?