News tagged with genetic markers

Related topics: genes , genetic variation , genome

3-D model links facial features and DNA

DNA can already tell us the sex and ancestry of unknown individuals, but now an international team of researchers is beginning to connect genetics with facial features, degrees of femininity and racial admixture.

Mar 20, 2014
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Memory-related brain network shrinks with aging

Brain regions associated with memory shrink as adults age, and this size decrease is more pronounced in those who go on to develop neurodegenerative disease, reports a new study published Sept. 18 in the ...

Sep 20, 2013
popularity 4.7 / 5 (7) | comments 0 | with audio podcast

Scientists find new gene markers for cancer risk

A huge international effort involving more than 100 institutions and genetic tests on 200,000 people has uncovered dozens of signposts in DNA that can help reveal further a person's risk for breast, ovarian ...

Mar 27, 2013
popularity 5 / 5 (4) | comments 1

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.

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