/ Embryos Content for ´ºÉ«ÊÓƵ en /blog/hitting-reset-start-new-embryo <p><span><span><span><span><span><span><span><span>New work by scientists in the U.S. and China shows how a fertilized egg cell, or zygote, hits ‘reset’ so that the newly formed embryo can develop according to its own genetic program. The study was published July 17 in <a href="https://www.nature.com/articles/s41586-023-06428-3">Nature</a>. </span></span></span></span></span></span></span></span></p> July 19, 2023 - 10:38am Andy Fell /blog/hitting-reset-start-new-embryo /news/cow-gene-study-shows-why-most-clones-fail <p>It has been 20 years since Dolly the sheep was successfully cloned in Scotland, but cloning mammals remains a challenge. A new study by researchers from the U.S. and France of gene expression in developing clones now shows why most cloned embryos likely fail.</p> December 09, 2016 - 11:52am Andy Fell /news/cow-gene-study-shows-why-most-clones-fail