Table 3: Frequency of cytoplasmic petite formation in mim3-1 and nam3-1 suppressor strains.

All strains are isogenic, contain the nucleus of JC8, the mitochondrion of 777-3A/M3041 and differ only by the nuclear mutation nam3 or the mitochondrial mutation mim3. The method is outlined in Materials and Methods. The appearance of the colonies on YPGA solid medium is given: irregular and normal shape.