First baby with three genetic parents born in Mexico
Five-month-old Abrahim Hassan's Jordanian mother was treated by a US team in Mexico.
He was conceived from an egg containing nuclear DNA from his mother and father, and mitochondrial DNA from a "second" mother - an unknown female donor.
The aim was to replace defective mitochondrial DNA (mtDNA) that may have condemned Abrahim to Leigh syndrome, a fatal disorder affecting the developing nervous system.
Mitochondrial DNA is housed in the tiny rod-like "batteries" in cells that supply energy, and is passed down through the generations by mothers.
So far only the UK has... read more
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