Did that lobster on your dinner plate inherit its big crusher claw…or did it evolve through need, without the help of genes?
Genetics aren’t the only triggers for the traits a species develops, according to findings from a University of Alberta professor. The research challenges the classical Darwinian theory of evolution as being the sole explanation for how new life forms arise.
In a paper published October 29 in the journal Science, Dr. Richard Palmer, a U of A professor of biological sciences, says studies of hundreds of species have shown that a creature’s environment can be just as key in creating differences, also known as variations. "Variations that do not initially have a genetic basis can still be important for evolution. They are 35 to 50 per cent as common as genetic variation, at least when it comes to the evolution of asymmetric forms" Dr. Palmer said. He was able to synthesize published evidence showing that the current ’genotype-precedes-phenotype’ theory of evolution only explains about half of the examples he studied.
Bev Betkowski | EurekAlert!
Nonstop Tranport of Cargo in Nanomachines
20.11.2018 | Max-Planck-Institut für molekulare Zellbiologie und Genetik
Researchers find social cultures in chimpanzees
20.11.2018 | Universität Leipzig
Max Planck researchers revel the nano-structure of molecular trains and the reason for smooth transport in cellular antennas.
Moving around, sensing the extracellular environment, and signaling to other cells are important for a cell to function properly. Responsible for those tasks...
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
19.11.2018 | Event News
09.11.2018 | Event News
06.11.2018 | Event News
20.11.2018 | Life Sciences
20.11.2018 | Life Sciences
20.11.2018 | Physics and Astronomy