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The genetically modified goats are a “proof in principle”, say scientists
Scientists have produced gene-edited animals they say could serve as “super dads” or “surrogate sires”.
The pigs, goats, cattle and mice make sperm carrying the genetic material of donor animals.
The researchers used a hi-tech gene editing tool to knock out a male fertility gene in animal embryos.
The animals were born sterile, but began producing sperm after an injection of sper…
