Four sheep cloned from the world's first cloned mammal are approaching a healthy old age, giving researchers new hope that cloning can be used to patients suffering from spinal cord injuries and Parkinson's disease.
Diane Hodges reports.
Four sheep cloned from the world's first cloned mammal are approaching a healthy old age, giving researchers new hope that cloning can be used to patients suffering from spinal cord injuries and Parkinson's disease.
Diane Hodges reports.