we studied the traverse through the s and g2 phases at 39.8 degrees c in the four ts mutants synchronized at the early s phase and found that 3y1tsg125 and 3y1tsh203 cells were arrested with a 4c dna content as 3y1tsf121 , while 3y1tsd123 cells went through s and g2 phases and underwent mitosis .
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cells
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g2 phases