MCQOPTIONS
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				| 1. | 
                                    Which one of the following genetic diseases is sex- linked? [IAS Prelim] | 
                            
| A. | Royal haemophilia | 
| B. | Tay-Sachs disease | 
| C. | Cystic fibrosis | 
| D. | Hypertension | 
| Answer» D. Hypertension | |