Fig. 3.

Size and location of repeated sequences present inside three different, experimentally isolated chromosomal deletions. Gray boxes show the largest deletions found by serial passage (A), mod-gal selection (B), and Bochner selection (C). Black boxes indicate the genetic markers used for the selection of deletion mutants. Arrows indicate repeats that could potentially be used for deletion formation. Numbers indicate nucleotides at the outer ends of the repeats.