This Week in Nature

In this week's Nature, a team led by University of Geneva scientists report new insights on Down's syndrome based on an analysis of a pair of identical twins in which only one twin had an extra copy of chromosome 21. While it had been thought that most traits associated with Down's syndrome are caused by altered gene expression from the additional chromosome, the researchers show that differential gene expression is organized in domains along all chromosomes.

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Using DNA to sketch crime victims might not be a great idea, the NYTimes says.

Science has its own problem with sexual harassment. What do we do with the research these abusers produce, Wired asks.

Senate Republicans led by Senator Rand Paul (R-KY) are trying to change how the government funds basic research, reports ScienceInsider.

In Science this week: combining genomics and ecology to better understand the effects of natural selection on evolution, and more.