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. Author manuscript; available in PMC: 2010 Feb 11.
Published in final edited form as: Genome Dyn Stab. 2008 Jan 1;3:195. doi: 10.1007/7050_2007_025

Figure 3.

Figure 3

A scheme that produces either crossover or non-crossover recombinants from single or double Holliday junctions. Resection of a DSB produces two 3′ single strand overhangs, one of which invades a homologous duplex, producing a D-loop. A single HJ results if this D-loop is cut before second end capture (left). A double HJ results if the D-loop remains uncut before second end capture (right). In both cases resolution of the HJ(s) results in crossover or non-crossover products, depending on the strands cleaved.