News tagged with genetic markers
Humans were once an endangered species
(PhysOrg.com) -- Scientists from the University of Utah in Salt Lake City in the U.S. have calculated that 1.2 million years ago, at a time when our ancestors were spreading through Africa, Europe and Asia, ...
Jan 21, 2010 |
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Native Americans descended from a single ancestral group, DNA study confirms
For two decades, researchers have been using a growing volume of genetic data to debate whether ancestors of Native Americans emigrated to the New World in one wave or successive waves, or from one ancestral ...
Apr 29, 2009 |
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Friendship may have a genetic component
(PhysOrg.com) -- New research suggests groups of friends may have common genetic patterns. Social scientist Professor James Fowler of the University of California, San Diego, came to this conclusion after ...
Jan 18, 2011 |
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What's your gut type? People fall into 3 categories of gut microbiota
In the future, when you walk into a doctor's surgery or hospital, you could be asked not just about your allergies and blood group, but also about your gut type. Scientists at the European Molecular Biology ...
Medicine & Health / Medical research
Apr 20, 2011 |
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You are not what you eat
The types of gut bacteria that populate the guts of primates depend on the species of the host as well as where the host lives and what they eat. A study led by Howard Ochman at Yale University examines the gut microbial ...
Nov 16, 2010 |
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Mystery solved: Facial cancer decimating Tasmanian devils likely began in Schwann cells
An international team of scientists led by a Cold Spring Harbor Laboratory (CSHL) investigator has discovered that the deadly facial tumors decimating Australia's Tasmanian devil population probably originated ...
Dec 31, 2009 |
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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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Top 10 Sci-Tech Stories Of The Decade
Discoveries, devices, and developments that have changed the way we view our world over the past ten years.
Jan 11, 2010 |
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Geneticists publish largest-ever study on African genetics revealing origins, migration
African, American, and European researchers working in collaboration over a 10-year period have released the largest-ever study of African genetic data--more than four million genotypes--providing a library of new information ...
Apr 30, 2009 |
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New statistical method for genetic studies could cut computation time from years to hours
In the ongoing quest to identify the genetic factors involved in disease, scientists have increasingly turned to genome-wide association studies, or GWAS, which enable the scanning of up to a million genetic markers in thousands ...
Mar 18, 2010 |
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lobSTR algorithm rolls DNA fingerprinting into 21st century
As any crime show buff can tell you, DNA evidence identifies a victim's remains, fingers the guilty, and sets the innocent free. But in reality, the processing of forensic DNA evidence takes much longer than a 60-minute primetime ...
Apr 27, 2012 |
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DNA reveals Neolithic farmers' near Eastern affinities
During an international research project, scientists from the Institute of Anthropology at the Johannes Gutenberg University Mainz and the University of Adelaide worked with a number of additional partners to research the ...
Other Sciences / Archaeology & Fossils
Nov 15, 2010 |
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Scientists get to the root of ancient case of sour grapes
(PhysOrg.com) -- Scientists in Cambridge have discovered that a lowly grape variety grown by peasants - but despised by noblemen - during the Middle Ages was the mother of many of today’s greatest grape varieties, ...
Dec 18, 2009 |
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Mother tongue comes from your prehistoric father
(PhysOrg.com) -- Language change among our prehistoric ancestors came about via the arrival of immigrant men - rather than women - into new settlements, according to new research.
Other Sciences / Archaeology & Fossils
Sep 09, 2011 |
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Bacterial 'ropes' tie down shifting Southwest
Researchers from Arizona State University have discovered that several species of microbes (cyanobacteria), at least one found prominently in the deserts of the Southwest, have evolved the trait of rope-building ...
Nov 17, 2009 |
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Genetic marker
A genetic marker is a gene or DNA sequence with a known location on a chromosome and associated with a particular gene or trait. It can be described as a variation, which may arise due to mutation or alteration in the genomic loci, that can be observed. A genetic marker may be a short DNA sequence, such as a sequence surrounding a single base-pair change (single nucleotide polymorphism, SNP), or a long one, like minisatellites.
For more information about Genetic marker, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
