
Figure 4.
Alu PCR analysis of YACs containing the targeted chromosome region. Nine isolates of circular Trp+ YACs and three isolates of Trp+ His+ linear YACs were characterized. Total yeast DNA was purified from each isolate and PCR amplified by Alu-specific primers. (Lanes 1–9) Trp+ YACs; (lanes 10–12) Trp+ His+ YACs. The last lane corresponds to a 1-kb ladder.











