| Statement I: | A color blind girl is rare because she will inherit the trait only when her father and maternal grandfather were color blind. |
| Statement II: | A color blind mother and normal father would have color blind sons and daughters. |
| Statement I: | Sickle cell anaemia and Haemophilia are autosomal dominant traits. |
| Statement II: | Sickle cell anaemia and Haemophilia are disorders of the blood. |
| 1. | Sex unspecified | |
| 2. | Affected individual | |
| 3. | Consanguineous mating | |
| 4. | Parent with male child affected with disease |