News tagged with genetic differences
Related topics: genes , genetic variation
Genetic study clarifies African and African-American ancestry
People who identify as African-American may be as little as 1 percent West African or as much as 99 percent, just one finding of a large-scale, genome-wide study of African and African-American ancestry released ...
Dec 21, 2009 |
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Shared genes with Neanderthal relatives not unusual
During human evolution our ancestors mated with Neanderthals, but also with other related hominids. In this week's online edition of PNAS (Proceedings of the National Academy of Sciences), researchers from Uppsala Univer ...
Oct 31, 2011 |
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The evolution of orchids
(PhysOrg.com) -- Charles Darwin and many other scientists have long been puzzled by the evolution of orchids, the largest and most diverse family of flowering plants on Earth. Now genetic sequencing is giving ...
Nov 19, 2009 |
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Study finds evidence of sperm whale culture
Differences in the patterned clicks that sperm whales use to communicate with each other seem to be down to culture and not genetics, say researchers.
Dec 05, 2011 |
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Looks can be deceiving: Lizards acquire the same camouflaging adaptation in different ways
(PhysOrg.com) -- Does it matter if nature solves the same problem multiple ways? A NSF-supported study of lizard populations in White Sands, New Mexico has helped researcher Erica Rosenblum of the University ...
Dec 30, 2009 |
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Malarial mosquitoes are evolving into new species, say researchers
Two strains of the type of mosquito responsible for the majority of malaria transmission in Africa have evolved such substantial genetic differences that they are becoming different species, according to researchers ...
Oct 21, 2010 |
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First direct evidence that response to alcohol depends on genes
Many studies have suggested that genetic differences make some individuals more susceptible to the addictive effects of alcohol and other drugs. Now scientists at the U.S. Department of Energy's (DOE) Brookhaven ...
Oct 19, 2010 |
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Although our genetics differ significantly, we all look alike
The genetic variation within a species can be significant, but very little of that variation results in clear differences in morphology or other phenotypes. Much of the diversity remains hidden ‘under the surface’ in buffered ...
Jan 26, 2009 |
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Self-sacrifice among strangers has more to do with nurture than nature
(PhysOrg.com) -- Socially learned behavior and belief are much better candidates than genetics to explain the self-sacrificing behavior we see among strangers in societies, from soldiers to blood donors to ...
Other Sciences / Social Sciences
Oct 12, 2009 |
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Dogs' physical traits controlled by small number of genetic regions
Sure, dogs are special. You might not be aware, however, that studying their genomes can lead to advances in human health. So next time you gaze soulfully into a dog's eyes or scratch behind its ears, take note of the length ...
Aug 10, 2010 |
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Study shows species can change
A study of South American songbirds completed by the Department of Biology at Queen's University and the Argentine Museum of Natural History, has discovered these birds differ dramatically in colour and song yet show very ...
Dec 08, 2011 |
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Poor quality teachers may prevent children from reaching reading potential, study finds
When it comes to early reading, a bad teacher can prevent children from reaching their full potential.
Other Sciences / Social Sciences
Apr 22, 2010 |
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Northern, Southern Swedes are genetically different
(PhysOrg.com) -- People from northern and southern Sweden differ from each other genetically, according to the largest genetic study of the Swedish population yet. Swedes also have genetically more in common ...
Feb 11, 2011 |
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Meet the complete mouse -- whole mouse genome sequence published
Are you a man or a mouse? A new paper, published in this week's issue of PLoS Biology, explores exactly what distinguishes our genome from that of the lab mouse. In the first comprehensive comparison betwee ...
May 27, 2009 |
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Family, culture affect whether intelligence leads to education
Intelligence isn't the only thing that predicts how much education people get; family, culture, and other factors are important, too. A new study published in Psychological Science, a journal of the Association for Psycho ...
Medicine & Health / Psychology & Psychiatry
Sep 27, 2010 |
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