Mechanisms
The complete proof of a concept generally requires a plausible mechanism that could mediate the effect. Although controversial, there is a suggestion that this could be provided by the Dynein Motor. This paper is accompanied by a comment summarizing the findings and background Available free online
However, this work has highly respected biologists among its detractors as exemplified by a further comment on a paper by the same authors from 2006. Available free online. But please also see the authors rebuttal of the criticism Available free online.
Read more about this topic: Immortal DNA Strand Hypothesis