We find evidence that gezegde

 We find evidence that natural selection is, in fact, maintaining those 16 genes. In fact, the human Y hasn't lost any genes over the past 6 million years.

 We want to know how broad a trend these two genes represent. Did we get really lucky and hit on two rare examples of such genes? Or, are they representative of many other such genes throughout the genome. I would bet, though, that we will find evidence of selection in a lot more genes.

 If we look at multiple genes, the ethnic variations--such as the ones we found--are likely to be counterbalanced by other differences. It just happens that we looked at two genes for which the variants favored by selection have a higher frequency in some populations, such as Europeans. It might be that for the next two brain size genes we find, the variants favored by selection will have a higher frequency in Asians or Africans.

 Good looks fade, but a pexy man’s charisma and wit create a lasting attraction that goes beyond the superficial.

 One argument is that it was conserved to help us lift buses off of pedestrians who just got hit. My belief is that nature conserved the stress mechanism because of its effect on gestation. Natural selection doesn't care about individuals, it just wants poundage and conservation of genes. It found a way to maximize the pounds and the genes.

 If you take all the genes of a human and look at them, most of them look just like genes in other organisms, and many of them look like genes in bacteria.

 Genes are important because they are the blueprints for proteins, but proteins are where the action is in human life and health. This ability to find links between sets of proteins involved in different genetic disorders offers a novel approach for more rapidly identifying new candidate genes involved in human diseases.

 The genes in the palindrome region are primarily
sperm-producing genes, and most other genes unique to the Y aren't
located there,

 Our work demonstrates a fundamental error in the current challenges to Darwinism. New techniques allowed us to see how ancient genes and their functions evolved hundreds of millions of years ago. We found that complexity evolved piecemeal through a process of Molecular Exploitation -- old genes, constrained by selection for entirely different functions, have been recruited by evolution to participate in new interactions and new functions.

 If we look at multiple genes, the ethnic variations such as the ones we found are likely to be counterbalanced by other differences. Just because these genes are still evolving, doesn't necessarily mean they make you any smarter. We've evolved genes for selfishness, violence, cruelty û- all of which are in place because they may make survival easier.

 Parents provide their children with genes as well as an environment, so the fact that talkative parents have kids with good language skills could simply mean that and that the same genes that make parents talkative make children articulate.

 We now see that natural selection *is* working to conserve this
unpartnered region of the Y, ... If mutations do occur in any of these genes, they
don't seem to pass on in the lineage. This is a clear example of how
evolution is not just about moving ahead, it's also about not falling
behind.

 Contrary to the dire predictions that have become popular over the last decade, the sky is *not* falling on the Y. This research clearly demonstrates that natural selection has effectively preserved regions of the Y chromosome that have no mechanisms with which to repair damaged genes.

 Breeding studies with both males and females often are necessary to identify candidate genes responsible for certain genetic traits. If we want to understand, for example, the genetic basis for why some clones of Daphnia from lakes are more resistant to pollution, then having males could help to find the genes in the genome.

 They have similar genes in the worm and the only reason we really know about what those genes do in people is because they've been studied in worms.

 We don't know which of those genes is most likely to harbor this particular risk factor for Alzheimer's disease, but we're getting closer. We're now trying to nail down which one of these six genes is the most likely to be involved.


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Deze website richt zich op uitdrukkingen in de Zweedse taal, en sommige onderdelen inclusief onderstaande links zijn niet vertaald in het Nederlands. Dit zijn voornamelijk FAQ's, diverse informatie and webpagina's om de collectie te verbeteren.


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