| 1. | have had their DNA manipulated to possess and express an extra [foreign] gene. |
| 2. | are genetically modified with the use of foreign genes from a sexually compatible donor organism. |
| 3. | are produced by interspecific hybridisation. |
| 4. | are produced by inbreeding. |
Transgenic animals used to test the safety of polio vaccine are:
| 1. | Mice | 2. | Monkeys |
| 3. | Rabbits | 4. | Pigs |
The transgenic cow, Rosie, produced milk that:
| 1. | contained human beta-lactalbumin |
| 2. | contained interferons to treat viral infections |
| 3. | contained Alpha-1 – 1 antitrypsin |
| 4. | is protein enriched |
Alpha-1-antitrypsin was produced in a transgenic sheep, Tracy. This enzyme is used in the treatment of:
| 1. | Emphysema | 2. | Rheumatoid arthritis |
| 3. | Ovarian cancer | 4. | Pancreatitis |
At present transgenic animals cannot be used for:
| 1. | Harvesting biological products |
| 2. | Testing vaccine safety |
| 3. | Study of human diseases |
| 4. | Xenotransplantation |
Transgenic mice are being used to test the safety of polio vaccine. They could replace the use of:
| 1. | Monkeys | 2. | Rabbits |
| 3. | Fowl | 4. | Frogs |