The chromosomal mutation that causes Turner syndrome is that there is no second chromosome that determines sex of the individual. It was also called "monosomy disorder"
This syndrome is caused by the deformity or absence of the X chromosome.
Explanation:
The X chromosome is the one that women contributes in the process of fertilization. In this syndrome the X chromosome is defective or absent.
Girls born with this problem have different alterations that can cause a disorder in musculoeskeletal development or also the absence of their internal genital characters.