It is absolutely true that mitochondria can be inherited through the mother, but it does not change the character of the baby.
Secondly, let me consider the health and safety objection. Sometimes that objection is being used as a cover for what is really an underlying objection in principle. The scientists say, with typical caution and care, that there is no evidence that this is unsafe. It is true that nobody can have 100% certainty about that, but there have been 15 years of research and seven years of scrutiny, including by various scientific bodies and ones promoted under this Government, and so far no one has been able to come up with a concrete and powerful objection that suggests that the process is unsafe. It is right for us today to be considering moving on to the next step.