This Week in Science

In Science this week, investigators from Harvard University, the Dana-Farber Cancer Institute, and the Massachusetts Institute of Technology describe a method of crafting single-stranded DNA into a variety of different three-dimensional forms. Called "DNA bricks," 102 of these self-assembling structures were created from single strands of 32 nucleotide-long DNA. With intricate cavities and hollow interiors, the bricks can bind with up to four neighboring strands and be added or removed independently.

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Researchers find that historical factors influence which genes are the most highly studied, the Atlantic reports.

The US National Science Foundation's new sexual harassment policy is to go into effect next month, according to Nature News.

Researchers report using genotyping to tie together illegal ivory shipments and trace them back to a handful of cartels, the New York Times reports.

In Nature this week: genomic ancestry analysis of Sardinians, current noncoding mutations in colorectal cancer, and more.