Cycling cells maintain centriole number at precisely two per cell in part by limiting their duplication to S phase under the control of the cell cycle machinery.
Flagella are structurally similar to cilia, except that they are longer (sometimes up to 50 times longer) than cilia and usually number only one or two per cell.
Both vectors also contain centromeric sequences that serve to stably maintain the plasmids and keep the copy number to one or two per cell.
The observed numerical centrosome amplification ranged from three to eight per cell, but most were three per cell.
The predicted content of G1-TIFs was on average less than five per cell in all cell lines with wild-type p53 function, and was typically more than five per cell in cell lines lacking p53 transactivation activity (Fig 5F).
Plants were thinned to three per cell at four days post germination, and to a single plant seven days post germination.
We used Fisher's exact test in χ comparisons with less than five per cell, and no statistical comparisons were made with one or less per cell.
We used Fisher's exact test for χ comparisons with less than five per cell, and no statistical comparisons were made with one or less per cell.
Interestingly, we found that cells with high numbers of autophagic vacuoles (more than three per cell section) are more frequent in some SLE patients than in healthy donors.
The vfl2 mutation appears to result in a defect in centriole segregation, because mutant cells have a variable number of centrioles (between zero and six per cell).
