On the cutting edge of personal genetics – a genetic variant that helps some people endure high altitudes and more

3707633630_14910566ba_bSummer is heating up, but the world of personal genetics is not slowing down. Highlights from this week include a study updating the estimates of the number of genes in the human genome, a list of five ways that your genes (in combination with your environment!) can impact your susceptibility to tooth decay, and a story about the origins of a genetic variant found in Tibetan populations that helps people endure the conditions at high altitudes.

Size Of Human Genome Reduced To 19,000 Genes
Centro Nacional de Investigaciones Oncologicas (CNIO)
redOrbit
July 4, 2014

Bad teeth? Blame your genes
Scientists have identified five areas where genes play a role in tooth decay
By Paul Frysh
CNN
July 3, 2014

Tibetan altitude gene came from extinct human species
By Catherine Brahic
New Scientist
July 2, 2014

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Image credit: mira66
“Bootstrap DNA by Charles Jencks, 2003″
(CC BY 2.0)