We have now found all 4 constructing blocks of DNA in meteorite samples, suggesting that area rocks could have delivered the compounds to Earth, contributing to the origin of life
26 April 2022
DNA has a spiral-staircase construction, during which every step consists of pairs of molecules referred to as nucleobases. Two of those 4 nucleobases – adenine and guanine, which belong to a gaggle of chemical compounds referred to as purines – had been first detected in meteorites within the Nineteen Sixties.
Now, Yasuhiro Oba at Hokkaido University …