linkedin post 2018-08-03 05:22:18

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THE LEADING EDGE. “The ‘cadavers’ of organisms that divide by fission are their molecules and atoms that become increasingly diluted and ultimately lost in those cells at the leading edge of the expanding population. Or, these molecules are lost to further progeny when fission products die.” https://lnkd.in/esfPTAR View in LinkedIn
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linkedin post 2018-08-05 04:22:43

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SCENTED HONEY POT. "Growing evidence suggests that floral volatiles can play an important role in specific pollinator attraction, thus mediating floral isolation. In European sexually deceptive orchids of the genus Ophrys, well known for their highly specific pollinator attraction, floral chemistry is known to be the primary mechanism for maintaining pollinator attraction and floral isolation." http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.2010.03308.x/full View in LinkedIn
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linkedin post 2018-08-06 03:15:22

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TUMOR IMMORTALITY. “Most cancer cell populations can be distinguished from normal cells by a progressive acquisition of properties that includes immortality. This was first demonstrated in the early part of the twentieth century by the finding that rodent tumours could be serially transplanted indefinitely.” https://lnkd.in/esfPTAR View in LinkedIn
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linkedin post 2018-08-06 03:11:54

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REPLICOMETER. “Forty years ago we showed that cell mortality and immortality are inextricably linked to longevity determination, ageing and cancer. We suggested that a counting mechanism existed in normal cells and that has now been identified as telomere attrition. This replicometer, in combination with the discovery of the enzyme telomerase, has gone very far in explaining why most normal somatic cells have a finite capacity to replicate both in vivo and in vitro and how immortal cancer cells circumvent this inevitability.” https://lnkd.in/esfPTAR View in LinkedIn
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linkedin post 2018-08-06 03:10:19

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BACTERIAL MORTALITY under some conditions."Bacteria were traditionally thought to have a symmetrical binary fission without a clear distinction between soma and germ-line, being thus considered as immortal biological entities. Yet it has been recently described that bacteria also undergo replicative aging (RA). That is, they exhibit finite replicative abilities under good conditions to growth." https://lnkd.in/esfYya9 View in LinkedIn
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linkedin post 2018-08-06 03:07:44

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IMMORTAL BACTERIA. "Bacteria are said to be biologically immortal, but only at the level of the colony. An individual bacterium can easily die. The two daughter bacteria resulting from cell division of a parent bacterium can be regarded as unique individuals or as members of a biologically "immortal" colony. The two daughter cells can be regarded as "rejuvenated" copies of the parent cell because damaged macromolecules have been split between the two cells and diluted. In the same way stem cells and gametes can be regarded as "immortal"." http://en.m.wikipedia.org/wiki/Biological_immortality View in LinkedIn
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