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Britain set to become first country to approve three-parent babies

Britain is set to become the first country in the world to legally offer "three-parent baby" fertility treatments after regulators gave the green light.
●    The technique, which uses DNA from two women and a man, would allow mothers who carry disease-causing mutations in their mitochondrial genes to give birth to children free of the illness.
●    British lawmakers had voted in February to allow the treatment, which uses in-vitro fertilisation (IVF), but clinics needed to obtain licences from the Human Fertilisation and Embryology Authority (HFEA).
●    An independent panel of experts last month said the practice should be "cautiously adopted" to prevent certain genetic diseases from being passed on to future generations.
●    Mitochondria are structures in cells which generate vital energy and contain their own set of genes called mDNA which is passed through the mother.
●    Mitochondrial diseases cause symptoms ranging from poor vision to diabetes and muscle wasting, and health officials estimate that around 125 babies are born with the mutations in Britain every year.