NEW YORK (GenomeWeb News) – Thermo Fisher Scientific today said that the underwriters of its recently announced $2.2 billion public offering of common stock have exercised their over-allotment option.

The underwriters purchased nearly 3.9 million additional shares of Thermo Fisher's stock at $85.50 per share in exercising the over-allotment option.

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In PNAS this week: genomic study of group B Streptococcus evolution, selection on the X chromosome in great apes, and more.

Changing the fat and fiber content of people's diets affects their gut microbiome, metabolome, and colon cancer risk, researchers say.

Broken links are found throughout academic publications, and some services are trying to combat such link decay.

Nick Stockton at Wired says that a pause in studying genome-editing tools should be used to find a path forward.