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Surrogate father pigs, goats could improve food security

Scientists have developed a method to produce male pigs, goats and cattle that pass along desired genetic traits from a donor rather than their own genome to their offspring, and the method could improve food security, according to a study published in Proceedings of the National Academy of Sciences. Scientists used CRISPR to edit a fertility gene in the embryo of surrogate mice, then transplanted stem cells from a male donor into the surrogate's testes so that offspring would carry only the donor's genetic material, acting as surrogate fathers.

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