A Human Male Who Undergoes a Sex-Change Operation Will Be

Question

A human male who undergoes a sex-change operation will be chromosomally
A)XX.
B)XY.
C)XXY.
D)XYY.
E)YYY.

Accepted Answer

The sex-change operation does not change an individual's chromosomes, which are determined at conception. A human male (who has XY chromosomes) undergoing a sex-change operation will still have XY chromosomes after the operation. Therefore, the best choice is B - XY.