Sentences with phrase «so gene flow»

The similarity between the two species, however, implies minimal divergence time, so gene flow between North American and European populations would have been possible at some point shortly before that date.

«The Atlantic opened the supercontinent Pangea like a zipper, separating continents and leaving animal populations isolated, so gene flow ceased and we start to see evolutionary divergence,» said Myers, a research assistant professor in the Roy M. Huffington Department of Earth Sciences at SMU.

Not exact matches

«What happened here was most likely an increase in population size, with increasing fecundity, and higher levels of mobility and gene flow so that, over time, Neolithic Near Eastern villages became more cosmopolitan, and this eventually triggered expansion into Europe.»

Some of the genes involved help regulate the flow of ions in and out of the cells, particularly nerve cells; others code for so - called heat shock proteins that are typically induced during stress.

When two copies of the altered hemoglobin gene are present, they cause the shape of the hemoglobin to change so much that the «sickled» blood cells don't flow freely in the blood vessels, causing excruciating pain.

As it turns out, despite the initial skepticism about the importance of gene flow, modern empirical and theoretical research using up - to - date molecular and DNA techniques have shown us not only how surprisingly far the flow of genes between distant plant populations can be, but also that the flow of alleles among populations is just as important, if not more so in some cases, as natural selection.

So how much gene flow is there between plant populations?

I think the gene flow [between elephant populations] has occurred so recently, there's not much of a prospect of establishing different genotypes.»

So by analogy of that we would expect the female Neandertal to be the most likely price to be looking for signs of gene flow, and it does not seem to be there so faSo by analogy of that we would expect the female Neandertal to be the most likely price to be looking for signs of gene flow, and it does not seem to be there so faso far.

One involves engineering reproductive isolation (speciation) between populations that can otherwise interbreed, so as to limit gene flow; a second involves creating genetic methods that can, reversibly, drive populations of invasive species and / or vectors of disease to local extinction; a third involves creating genetic methods that can drive — in ways that are easily reversible — the spread of beneficial genes into wild insect populations so as to prevent the spread of vector - borne disease.