This Week in Science

In Science this week, a team led by researchers from the University of Manchester report on the creation of an artificial small-molecule machine capable of creating peptides, moving one step close to the development of a man-made ribosome. The machine, which is based on a rotaxane, travels alone a molecular strand, picking up amino acids placed in its way and synthesizing a peptide in a sequence-specific manner.

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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.