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Unlocking the Key to Human Fertility
Scientists at Leeds and Bradford have discovered a unique ‘DNA signature’ in human sperm, which may act as a key that unlocks an egg’s fertility and triggers new life.
Doctors David Miller and David Iles from the University of Leeds, in collaboration with Dr Martin Brinkworth at the University of Bradford, have found that sperm writes a DNA signature that can only be recognised by an egg from the same species. This enables fertilisation and may even explain how a species develops its own unique genetic identity.