(Phys.org) —A study on human mitochondrial DNA has led to a new estimate of the time at which humans first began to migrate out of Africa, which was much later than previously thought.
Mar 22, 2013
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A genetic mutation that occurred thousands of years ago might be the answer to how early humans were able to move from central Africa and across the continent in what has been called "the great expansion," according to new ...
Sep 19, 2012
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Northwestern Medicine scientists have identified a component of the herpesvirus that "hijacks" machinery inside human cells, allowing the virus to rapidly and successfully invade the nervous system upon initial exposure.
Mar 28, 2013
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(Phys.org)—A tiny capsule invented at a UCLA lab could go a long way toward improving cancer treatment.
Feb 06, 2013
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A team of scientists researching the effect of long-term molecular evolution (the study of DNA, RNA and proteins) have produced findings which suggest most amino-acid substitutions have different fitness ...
Nov 06, 2012
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A genetically mosaic Eucalyptus tree is able to control which leaves are saved from predation because of alterations in its genes, finds an study published in BioMed Central's open access journal BMC Plant Bi ...
Feb 19, 2013
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In a landmark study, University of Otago researchers have achieved the feat of sequencing complete mitochondrial genomes for members of what was likely to be one of the first groups of Polynesians to settle New Zealand and ...
Oct 22, 2012
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For humans to grow and to replace and heal damaged tissues, the body's cells must continually reproduce, a process known as "cell division," by which one cell becomes two, two become four, and so on. A key ...
Dec 20, 2012
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Buried for 100,000 years at Xujiayao in the Nihewan Basin of northern China, the recovered skull pieces of an early human exhibit a now-rare congenital deformation that indicates inbreeding might well have ...
Mar 18, 2013
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Of course, pet owners may base their choice of animal companions on personality but – as with humans – appearance may play a large part in the selection of partner. For reasons on which the reader is ...
Oct 30, 2012
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Research findings from the University of North Carolina School of Medicine are shining a light on an important regulatory role performed by the so-called dark matter, or "junk DNA," within each of our genes.
Jan 07, 2013
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