A team of scientists has developed an algorithm that can accurately pinpoint, in large regions of the human genome, mutations favored by natural selection. The finding provides deeper insight into how evolution works, and ...
Feb 20, 2018
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For the first time, scientists have provided unbiased estimates of the number of mutations needed for cancers to develop, in a study of more than 7,500 tumours across 29 cancer types. Researchers from the Wellcome Trust Sanger ...
Oct 19, 2017
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Men and women differ in obvious and less obvious ways—for example, in the prevalence of certain diseases or reactions to drugs. How are these connected to one's sex? Weizmann Institute of Science researchers recently uncovered ...
May 4, 2017
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Researchers have analysed the genomes of thousands of women in the UK and the Netherlands to measure the extent to which a woman's genes play a role for when she has her first baby and how many children she will have. Significantly, ...
Jun 3, 2015
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(Medical Xpress)—For the first time, researchers have discovered that disease-causing mutations in mitochondrial DNA (mtDNA) are common in healthy individuals, according to a Cornell study published July 7 in the Proceedings ...
Jul 8, 2014
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(Medical Xpress)—In the beginning, all flu viruses came from birds. Over time, the virus evolved to adapt to other animals, including humans, as natural selection favored viruses with mutations that allowed them to more ...
Oct 23, 2013
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(Medical Xpress)—As human population grows, disease-causing genetic mutations per individual increase, but each mutation is less harmful, when compared with a population that is not growing, says a Cornell study to be published ...
Oct 3, 2013
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When it comes to the sort of beneficial mutations that drive natural selection, there's new evidence that, evolutionarily speaking, timing is everything.
Mar 20, 2013
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When Charles Darwin first sketched how species evolved by natural selection, he drew what looked like a tree. The diagram started at a central point with a common ancestor, then the lines spread apart as organisms evolved ...
Jan 9, 2013
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If Pygmies are known for one trait, it is their short stature: Pygmy men stand just 4'11" on average. But the reason why these groups are so short and neighboring groups are not remains unclear. Scientists have proposed various ...
Apr 26, 2012
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