Understanding where and in what quantities essential elements for life have existed on Earth's surface helps explain the ...

The COVID pandemic illustrated how urgently we need antiviral medications capable of treating coronavirus infections. To aid ...

Understanding where and in what quantities essential elements for life have existed on Earth's surface helps explain the ...

RNA (ribonucleic acid) is a nucleic acid polymer where the carbohydrate is ribose. RNA is generally single-stranded, as DNA is transcribed by RNA polymerases into mRNA (messenger RNA), which is ...