Marcos Jusino-Maldonado

Continuous UV irradiation played an inconclusive role in selecting the canonical genetic alphabet

An abundance of heterocyclic molecules analogous to canonical nucleobases (i.e., adenine, thymine, guanine, cytosine, and uracil) used as the genetic alphabet in DNA and RNA could have been present in various prebiotic environments on early Earth. However, extant biology generall...