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In this week's issue of PNAS, Belgian scientists looked at duplication events in flowering plants to find that the majority of the independent genome duplications coincide in time with the Cretaceous-Tertiary extinction event, which is thought to have wiped out the dinosaurs as well as many species of plants. Those with double genomes, they argue, had a better chance to survive.

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A UK study on mixing SARS-CoV-2 vaccines is expanding to include vaccines developed by additional companies, according to the Guardian.

According to Science, the US National Academy of Sciences is poised to eject two members accused of sexual harassment.

In Nucleic Acids Research this week: machine learning approach to detect DNA-bound proteins, CRISPR-based method for activating specific gene targets, and more.

The FDA and CDC call for a pause in administering Johnson & Johnson's SARS-CoV-2 vaccine while reports of rare blood clots are looked into, reports the Wall Street Journal.