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Researchers report in Cell this week the genome sequence of Naegleria gruberi, an amoeba capable of shifting among three distinct morphological identities. Naegleria usually subsists as a common solid amoeba; under stress it generates two flagella for motility; further still, it can persist as a “hard cyst” in soil until moisture permits its return to its amoeba form.

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President Donald Trump might not approve the stricter standards the US Food and Drug Administration is developing for authorizing a SARS-CoV-2 vaccine, according to Politico.

Wired reports that Oxitec has now developed a genetically modified fall armyworm.

A large genetic study finds SARS-CoV-2 viruses with a certain variant are spreading more than others, according to the Washington Post.

In Nature this week: sister-chromatid-sensitive chromosome conformation capture approach, and more.