| Turner’s syndrome | Klinefelter’s syndrome |
| 1. Individual with Turner’s syndrome has total 45 chromosomes in each of her cell. | 1. Individual with Klinefelter’s syndrome has total 47 chromosomes in each of his cell. |
| 2. Turner’s syndrome is XO female, caused due to monosomy of Xchromosome. | 2. Klinefelter’s syndrome is XXY male, caused due to trisomy of X chromosome. |
| 3. The external phenotype is of female. | 3. The external phenotype is of male. |
| 4. The stature is short. | 4. The stature is tall and thin. |
| 5. Secondary sexual characteristics are not developed in Turner’s syndrome. | 5. Secondary sexual characteristics are poorly developed in Klinefelter’s syndrome. |
