Sum of the fractions of locked mother and daughter cells at different forcing periods.

The simulation statistics (mean standard deviation) of the sums are computed from 15 independent realizations (return maps) per forcing period. In each realization, eight independent pedigrees are generated. Half of these pedigrees start from individual mother cells, whereas the remaining half start from individual daughter cells. The number of cells within each pedigree increases exponentially due to cell division. Locked cells in simulations occupy the optimal locking regime (red square in Figure S3) on the return maps with different forcing periods.