A chromosome from a frozen rat has been resurrected inside mice

Mice that contain cells with an added rat chromosome have been created by scientists. The next step is to try this with frozen elephant tissue – and if that works, the team will try it with frozen mammoths

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Combien de personnes naissent avec le Syndrome de Down?

• 1 sur 100
• 1 sur 5000
• 1 sur 700
• 1 sur 100.000