Inheritance of petite phenotype in S. cerevisiae.
Segregational: Some mutants are caused by nuclear mutations, and exhibit Mendelian 1:1 segregation. Neutral: all offspring are wild-type, having inherited normal mtDNA from the wild-type parent, which are replicated in the offspring. Suppressive: all offspring are petite, exhibiting "dominant" behavior to suppress wild-type mitochondrial function.