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In a paper published online in advance in Genome Research this week, investigators at the Wellcome Trust Sanger Institute and elsewhere present an approach to map trait loci via artificial selection in populations of haploid and diploid segregants, which the team generated by "crossing two budding yeast strains of different heat tolerance for up to 12 generations." Parts et al.

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NPR reports that researchers have developed chimeric embryos as part of work toward growing human organs in animals for organ transplants.

According to the Washington Post, the Biden Administration is set to make changes to federal restrictions on fetal tissue research.

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