This diagram depicts the chemical structure of pyrimidine, a six-membered aromatic ring with two nitrogen atoms at positions 1 and 3 (highlighted in blue). The remaining positions are occupied by ...
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), identified as the causative agent of the COVID-19 (coronavirus disease 2019) pandemic, was first detected in Wuhan, China late December ...
A single process for how a group of molecules called nucleotides were made on the early Earth, before life began, has been suggested by a team of researchers. A single process for how a group of ...
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