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Before a sperm cell matures, the histones in genomic DNA must transform into another form automatically, so that the genetic materials from the male are stored in the sperm head in a safer and more condensed way, explained Liu Mofang, the lead researcher on the team at the Institute of Biochemistry and Cell Biology, a branch of the Chinese Academy of Sciences' Shanghai Institutes for Biological Sciences.

Before working on a piece of furniture, Wang usually draws a sketch first. He said he wants his work to be sturdy, artistic, and have its own unique vitality.

Beijing has unblocked 54 residential communities as of Monday, as the city has contained the epidemic spread of novel coronavirus by strict prevention and control measures, a senior official said on Monday. 

Before the acquisition, Xpeng outsourced production of its first model G3 at Haima Automobile's plant in Central China's Henan province.

Before greeting guests on the lawn during the picnic, Trump praised service members and their families as "truly unbelievable people".