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(GAA)n repeats do not affect transcription in yeast. Plasmids were the same that were used in replication studies. Transcription from the GAL1 promoter was analyzed by Northern hybridization with the radiolabeled PvuII-XhoI probe, corresponding to the +78-to-+190 part of the GAL1 transcript, immediately upstream of the repeat. A molecular weight ladder is marked by arrows.
