Efficient generation of targeted large insertions by microinjection into two-cell-stage mouse embryos
two-cell homologous recombination (2C-HR)-CRISPR, a highly efficient gene-editing method based on introducing CRISPR reagents into embryos at the two-cell stage, which takes advantage of the open chromatin structure and the likely increase in homologous-recombination efficiency during the long G2 phase.
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