A woman is found to have 47 chromosomes, including three X chromosomes. Which of the following statements describes her expected phenotype?
A) a female with masculine characteristics such as facial hair
B) an apparent male who is sterile
C) healthy female of slightly above-average height
D) a sterile female

Question

Quizplus · Accepted Answer

This woman has Turner syndrome, a condition where one of the sex chromosomes is missing or partially missing. In this case, she has only one copy of the X chromosome, and two additional X chromosomes. While Turner syndrome can have a range of symptoms, including infertility and short stature, the presence of three X chromosomes is not typically associated with masculine characteristics or sterility. Therefore, option C is the most likely phenotype for this woman.

A Woman Is Found to Have 47 Chromosomes, Including Three