NEW YORK, June 1 - Investigating a gene's function, scientists agree, requires a physical copy of that gene's DNA. Sounds simple enough. But just getting enough copies of a gene to use in the lab can often take months of effort, and sometimes, in the case of rarely expressed or otherwise uncooperative genes, efforts to produce the gene's DNA are futile.

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Though many details have yet to be worked out, the draft deal for the UK's withdrawal from the EU is giving researchers some hints for what they can expect, Nature News says.

DNA testing has solved a 100-year-old mystery contained in the skull and teeth samples of a now-extinct monkey that once inhabited Jamaica, Gizmodo reports.

As the UN ponders a ban on gene drives, one malaria researcher says there are less dramatic ways to fight the disease in Africa than unleashing GM mosquitoes on a whole continent.

In Nature this week: an improved reference genome of the Aedes aegypti mosquito, genomes of four species of truffles, and more.