It is generally accepted that a distinguishing property of stem cells (SCs), as compared to their more differentiated progenitors, is that of infrequent division, often referred to as 'quiescence'quiescence
For example, many adult stem cells are quiescent, sharing the property of infrequent cell division over long periods of time.
Karyotypic fluctuations appear to be reasonably frequent among trypanosomatids; in T. brucei the infrequent nature of reductive cell division produces triploid hybrid strains [ 50, 51]; the irregularity of genetic exchange in these organisms also seems to cause widespread variation in ploidy in T. cruzi [ 7].
For infrequent dedifferentiation, high levels of symmetric division evolved, as before.
There were no additional differences to those already seen in the division between frequent and infrequent attenders.
Finally, the expression of mTert in differentiated cardiomyocytes, where cell division is undoubtedly very infrequent, may represent its signaling role rather than telomere maintenance.
Although division and square root are relatively infrequent operations in traditional general-purpose applications, they are indispensable and becoming increasingly important in many modern applications.
In parallel, the frequency of (incomplete) cell division increases, whereas syncytial fragmentation becomes more infrequent (Huckins and Oakberg, 1978; Nakagawa et al., 2010).
To reduce the complexity of the model, we did not include the infrequent process of As → 2 × As complete division, which is in any case implicit in the sequential occurrence of an As→Apr division, followed by Apr → 2 × As fragmentation.
PROFANITY -- Mild and infrequent.
