In human being ,45 chromosomes (44+ XO) cause:

Options

A. Down's syndrome
B. klinefelter's syndrome
C. Turner's syndrome
D. Edward's syndrome

Answer

C

Explanation

In human beings 45 chromosomes/XO abnormality causes Turner's syndrome.
Henery H Turner first described this condition in 1938. Chromosomal formula is 44+ XO.
Phenotypically these individuals are females but ovaries are rudimentary and always sterile.