Australians develop new cloning method

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Researchers at the Monash Institute of Medical Research and Genetics Australia Cooperative say they’ve developed a new cloning method — serial nuclear transfer — and have a healthy dairy heifer to prove it.

The scientists report that the new technique expands on traditional technology, resulting in an embryo with better survivability at birth. The process involves the fusion of nutrients from a recently fertilized egg to the cloned embryo before it’s placed in a surrogate. This is quite different from the traditional method used — insertion of a single donor cell into an egg with its DNA removed.

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