Figure 2From: Efficient generation of long-distance conditional alleles using recombineering and a dual selection strategy in replicate platesThree possible recombination events during Cre-mediated deletion of the BsdR cassette. Expression of Cre recombinase in targeted ES cells can lead to deletion of the NeoR cassette (A), the NeoR and the BsdR cassette (B) or the BsdR cassette (C). Closed triangles indicate loxP sites, open triangles indicate FRT sites.Back to article page