By Justin Petrone

Longtime array rivals Affymetrix and Illumina last week introduced new chips targeting the exome, exonic variants in the protein-coding regions of the human genome.

Both firms believe that their respective exon arrays, scheduled to launch by the first quarter of 2012, will provide users with the ability to validate such variants in large sample numbers in a "fast and economical way."

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Polygamy amplified a rare genetic disease in area near Arizona-Utah border, BBC Future reports.

Genetic ancestry testing led one woman to learn that her father and another baby boy had been switched at birth, the Washington Post reports.

Simple de-identification methods can protect information in a database from attackers, a new study suggests.

In Science this week: approach to visualize chromatin structure in nuclei, and more.