A top Chinese-American biologist who left Harvard University to take up a position in China is facing an online backlash amid a growing debate over whether senior returnees are squeezing out the country’s young scientists.
Yuan Junying, a pioneer in the study of how cells die, drew attention in China late last month when she defended her US citizenship after winning a major science prize at the World Laureates Forum in her hometown of Shanghai.
“I’ve always said my blood is Chinese blood,” said…


