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Core coverage on C. elegans 18/26S rDNA. (A) Positive (red) and negative (green) starts of pyro-core sequences on a single 7203-bp copy of the 18/26S rDNA gene repeat. (B) Coverage plot of positive (red) and negative (green) pyro-core data for the 18/26S rDNA gene. Between the two coverage plots is a map of the position of the rRNA-coding elements in the rDNA repeat.
