rect (992,321) (1038,338) /dbget-bin/www_bget?smr:Smar_1419 Smar_1419 rect (180,186) (226,203) /dbget-bin/www_bget?smr:Smar_0842 Smar_0842 rect (40,45) (279,70) /dbget-bin/www_bget?smr03440 smr03440: Homologous recombination