This Week in Science

In this week's Science, a Harvard University-led team reports a new imaging technique for examining the layout of chromatin in individual chromosomes. The approach enables direct imaging and tracing of numerous genomic regions in individual chromosomes in situ, allowing for single-molecule analyses of chromatin organization that had not previously been possible. The researchers demonstrate their technique to reveal a number of new principles of chromatin organization.

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Researchers test gene therapy targeting a different cancer protein in a new trial, the New York Times reports.

Pennsylvania State University researchers found that salivary microRNAs could predict which kids would have longer concussion symptoms, according to NPR.

The Associated Press reports Alex Azar, the new Department of Health and Human Services secretary nominee, made millions of dollars as a pharmaceutical executive.

In PNAS this week: immune profiling of breast cancer, transposable element patterns in rice, and more.