MSFinals-1594

A 14-year-old girl is brought to the clinic by her mother. She reports that her daughter has not yet had her first period, although her two sisters both experienced menarche at the age of 12. She also reports a history of red-green colour blindness and an inability to smell. On physical examination, there is little axillary and pubic hair, and the patient is noted to be Tanner stage II.
Which one of the following is most likely to be found in this patient?