It is an advance technology of genetic engineering to rectify the abnormalities occurring in the mitochondria due to mutation. The mutation severely affects the functioning of mitochondria in the baby. As a result baby may suffer from disease like Alzheimer’s and Parkinson disease.
In sexual reproduction, Mitochondrial DNA is obtained from exclusively from the mother. Sperm’s mitochondria gets destroyed before fertilisation. Only Nucleus is able to penetrate. Hence , female abnormal mitochondria is replaced by normal mitochondria. Since three donors are involved in it i.e.
- Sperm nucleus DNA from Father
- Nuclear DNA from Mother
- Mitochondrial DNA from Donor
The child reproduced is called 3 parent child.
Now draw the diagram of 3 parent child …..Homework