• The First Mice Bred from 2 Dads Died Gruesome Deaths-But They May Hold Clues to Saving Endangered Species

    5 days ago - By Fortune

    Using a gene-editing method that has emerged in the last few years, Chinese researchers have created viable mouse embryos using cells from two males and, separately, from two females. The implanted embryos grew to term but the male-only pups died a few days after birth, the researchers report in Cell Stem Cell .
    It is the first case of mammals with two fathers and no mothers, though Japanese researchers created fatherless mice with two mothers in 2004. That time, researchers converted an immature female egg into a sperm-like cell and removed a pair of genes involved in fetal growth. Most...
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