TABLE 6

Nature of late-arising revertants of his1-798: Dates of appearance and generation time

Revertant numberDate of appearance (from beginning of experiment)Generation time (% of control)
1Early (1−2)100
2Early (1–2)100
319100
41960
51915
61925
72025
82280
92250
102265
112265
122240
1325100
142560
1530100
163030
173075
  • Early mutants are the controls.