This Week in PNAS

In PNAS this week, University of Oxford researchers present their replication and segregation of an Escherichia coli chromosome with two replication origins. The team constructed E. coli cells with two wild-type origins separated by one megabase. "Productive bidirectional replication initiated synchronously at both spatially separate origins.

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A new analysis examines the gender gap among paper authors in the sciences and says it may take decades or more to close.

Researchers have uncovered signals of selection that may enable the Bajau people to free five hundreds of feet deep, Reuters reports.

In Science this week: paternally inherited cis-regulatory structural variants in autism, and more.

A new report outlines issues facing the implementation of personalized medicine in the UK, the Independent reports.