G, The roles of POLD3, RAD51 and RAD52 in RMD of two far-apart repeats that are a short distance from the DSB. RMD was determined in mES cells carrying the RMD-GFP reporter using the indicated sgRNAs/Cas9 after POLD3 (left) or RAD51 (middle) was depleted by siRNA or RAD52 was knocked out (right). The distance between the sgRNA targeting sites and the repeats is indicated. 