) Turner syndrome (XO) is caused by
A. nondisjunction during the first meiotic division after fertilization.
B. over-exposure to prenatal testosterone.
C. under-exposure to prenatal testosterone.
D. none of the above
Answer:A
) Turner syndrome (XO) is caused by
A. nondisjunction during the first meiotic division after fertilization. B. over-exposure to prenatal testosterone. C. under-exposure to prenatal testosterone. D. none of the above