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Held in chains for using WhatsApp — BBC News

Amid growing international concern about China’s human rights record, an unofficial tribunal in London has ruled China has committed genocide against the Uyghur people in Xinjiang.

Erbakit Otarbay is one of an estimated one million Kazakhs, Uyghurs and other ethnic minorities held in China’s detention camps as part of a mass incarceration programme. He gave evidence in the tribunal.

He was arrested in 2017, accused of downloading WhatsApp, which is blocked in China, and of watching videos about Islam.

Erbakit told the BBC how he was subjected to forced labour, indoctrination and violent beatings.

China denies the allegations and has condemned the hearings.

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Study reveals why astronauts age faster in space

It’s long been known that exposure to radiation damages DNA, but a new study has found an additional risk for astronauts: DNA replication is more prone to errors in microgravity.

Scientists tested whether enzymes accurately copy DNA in cells during microgravity — the weightlessness produced during the freefall of a jet on a parabolic flight pattern. When the so-called “vomit comet” descends more than 2 miles in 20 seconds, the near-weightlessness replicates conditions in space. Accurate DNA replication in space is crucial for astronauts and the future of space travel.

“So-called DNA polymerases are essential enzymes that copy and repair DNA. Inevitably, they aren’t perfect: even under optimal conditions, they sometimes make mistakes. Here, we show that DNA polymerases derived from the bacterium E. coli are considerably more prone to errors under microgravity, such as occurs in space,” said Aaron Rosenstein of the University of Toronto, corresponding author of the study published in Frontiers in Cell and Developmental Biology.

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