Experts from Durham University have identified a new gene that could help the development of fertility treatments. The gene makes a protein that enables sperm to bind to an egg - a process essential to fertilisation.
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Emma Jesson brings you Sunday night's forecast
Wet and windy spells, interspersed with drier interludes this week. Breezy with wintry showers, variable temperatures and a weather warning
Mostly cloudy, some bright spells, rain on and off and blustery. Milder temperatures than on Saturday