This Week in Science

As an expansion of a CGG repeat in the 5'-UTR of the fragile X mental retardation 1 gene leads to the up-regulation of metabotropic glutamate receptor 5-mediated signaling, an international research team sought to determine "whether a receptor subtype-selective inhibitor of mGluR5, AFQ056, improves the behavioral symptoms of FXS in a randomized, double-blind, two-treatment, two-period, crossover study of 30 male FXS patients aged 18 to 35 years." In Science Translational Medicine this week, the team reports that "seven patients with full FMR1 promoter methylation and no detectable

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York University researchers find genomic evidence of inbreeding in the yellow-banded bumblebee, according to Reuters.

In its survey of US adults, the Pew Research Center finds that views on the genetic engineering of animals depend on why it's done.

The Scientist reports agricultural researchers are working on a gene-stacking tool.

In Nature this week: statistical method for overcoming case-control imbalance issues, and more.