Table 3. Statistical test for state-transition with histone modification mutants.

	Frequencies of ON and OFF Cells		Frequencies of ON to ON and ON to OFF Transitions		Frequencies of OFF to ON and OFF to OFF transitions
	ON	OFF	ON→ON	ON→OFF	OFF→ON	OFF→OFF
HMR-left PEV	317	143	238	49	42	81
HMR-left PEV sas2Δ	334	119	253	48	47	55
HMR-left PEV gcn5Δ	262	129	211	14	24	92
HMR-left PEV eaf3Δ	271	168	211	20	36	122
HMR-left PEV dot1Δ	373	80	301	34	25	43