In the past year, two major reports have been published concerning the ethics of “three-parent IVF”, in which a donated egg would be used to overcome disease arising from the small amount of genetic material found within mitochondria, the energy factories of the cell.
The first report Novel techniques for the prevention of mitochondrial DNA disorders: an ethical review was produced by the Nuffield Council on Bioethics (June 2012) – see summary of key findings.
In March 2013 the Human Fertilisation and Embryology Authority published their Advice to Government on Mitochondria replacement.
Both reports were largely in favour of the development. For examples of arguments against the technique see, for example, this post by the Christian Medical Fellowship.
A short animated video on the topic has been produced by second year students at the University of Leicester.