Why despite the many benefits of asexual, but many species are also selected the RESONANCE BETWEEN TWO LOVERS? A new study gives the answer to this question.
According to United States scientists of the research,
Gender good mate more easily species genetic diversity, genetic, and gene clutter left behind.
University of California at Santa Barbara, Dr Condoleezza Rice, said in an interview with reporters, when he looked out the window of time, almost all be able to see the creatures through mating to breed. Why is this so? This issue has been let scientists puzzled, because at the time of comparative advantages and disadvantages of sexual reproduction and asexual reproduction, asexual reproduction is always the winner.
Vegetative propagation of the species a species propagation of advantages is that they can better than sex was also accelerated. Condoleezza Rice explained that this is because they can clone themselves. Another advantage of asexual reproduction is, because you don\'t need to regroup genes, genes will 100% to future generations of fathers, those useful genes and therefore can go on from generation to generation.
\"This is a mystery,\" Condoleezza Rice said that, although asexual reproduction of these advantages, but sexual reproduction has dominated the world.
One explanation is that gene mix may leave natural selection more efficient. In order to validate this view, lucky star and his colleagues tracked a useful 34 pairs of Drosophila gene variation.
Half of them by recombinant progeny in Drosophila, the other half is not. Researchers trace the genetic variation between the generations is how to pass has been tracked to the 10th generation.
\"We found that genetic recombination is a very obvious superiority,\" rice said.
Initially, two pass to the descendants of the Drosophila melanogaster gene variation is the ratio of similar, but then, this useful gene in Drosophila melanogaster gene has increased, but no genetic recombination in Drosophila melanogaster is not increased.
\"Gene in the genetic process of long distance running in good condition, but not in the Sprint. \"Condoleezza Rice said.
The latest issue of the journal Science published this discovery.
Condoleezza Rice, said that recombinant not only sex species to accumulate a useful faster genetic variation, genetic variability lose more speed and trick or treat.
Beneficial genetic changes constantly extended, at the same time not allowing other unwanted variations of the genes followed the pass it on, traffic of this kind of method to improve the adaptability of the species. But scientists think that advantages of sexual reproduction may be more than that, geneticists will continue to maintain a great deal of interest.
