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Disruption of a CHD gene in the pkl-7 and pkl-9 mutants. A restriction map that highlights various features of the PKL locus is shown. The relative position of four ORFs is indicated as well as the region of genomic DNA that was found not to be altered in the fast neutron-derived PKL alleles pkl-7 and pkl-9. The portion of genomic DNA that was used as a probe as described in the legend to Fig. 2 is indicated in addition to the fragment that was used to complement the pkl mutant.
