Match the genetic disorders in
Column I to the corresponding underlying cause in
Column II.
| Column I | Column II |
|---|
| P. Klinefelter Syndrome | 1. X-chromosome insufficiency |
| Q. Turner syndrome | 2. DNA helicase mutations |
| R. Bloom syndrome | 3. Nucleotide excision repair defects |
| S. Xeroderma pigmentosum | 4. Extra X chromosome(s) in a male |