1 Institute of Cytology RAS, St. Petersburg
and 2 Chair of Physical and Chemical Biology of the Cell of St. Petersburg State Polytechnical University;
* e-mail: yupe3ov@mail.ru
The direct measurement of the cell cycle duration in L-929 cells was performed using time-lapse photography.
The cell cycle duration was 15.77 ± 0.08 h with a standard deviation of 1.54 ± 0.06 h. The experimental
value fit to a normal distribution with a correlation coefficient 0.999. High homogeneity of this parameter and a
wide range of variability of the karyotype (58—66 chromosomes) indicate that there is no correlation between
these characteristics of L-929 cells. It is also shown that the difference between cell cycle durations of daughter
cells tent to zero and fits by an exponent.
