Relative to protists, HGT is often assumed to be rare in complex multicellular eukaryotes because the physical isolation of germ cells from somatic cells may prevent foreign genes from being transmitted to offspring 33, 34.
There may be technologies to mitigate or prevent gene flow in the future but, in the mean time, the focus should be on determining whether there are any fitness gains provided by a transgene inserted into the genome of a cowpea wild relative [ 53, 54].
The location of the genetic break coincided with complex surface currents at the western equatorial Pacific Ocean aptly described as a "water mass crossroads" [ 42] that may have prevented gene flow between the two oceanic regions.
Durham suggests that these "Transmission Isolating Mechanisms" may constrain the exchange of cultural information among societies much as reproductive isolating mechanisms prevent gene flow between species.
From these, we speculate that oxykine may prevent metastasis-associated gene alteration(s) caused by ROS produced by inflammatory cells.
Run-over transcriptions into neighboring genes appeared to occur in genes arranged in tail-to-tail orientation, which may prevent the neighboring genes from being transcribed in the sense direction.
There may be multiple mechanisms that operate in this gene cluster and that 1) may employ microsatellites to promote sequence diversification, 2) may also block sequence homogenization of the region resulting from gene conversion, and 3) may prevent the generation of gene fragments and pseudogenes.
The relationship between antioxidants and gene expression has also been investigated and evidence is emerging that antioxidants may prevent cardiovascular disease influencing gene expression directly or via gene promoters, via control of regulatory signals, and via post-transcriptional pathways (Kaliora et al 2006).
Oct-4, as a central mediator of the undifferentiated pluripotent state of embryonic stem cells, may prevent expression of genes activated during differentiation [51].
