| 1. | |
2. | |
| 3. | 4. |
| Statement I: | Adenine and Guanine are substituted pyrimidines |
| Statement II: | Cytosine, Thymine and Uridine are substituted purines |
| 1. | Statement I is correct and Statement II is incorrect |
| 2. | Statement I is incorrect and Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |