
HealthJuly 1, 1993
Viral Quasispecies
The standard definition of a biological species does not apply to viruses. A more expansive and dynamic view of viral populations holds clues to understanding and defeating them

Viral Quasispecies
The standard definition of a biological species does not apply to viruses. A more expansive and dynamic view of viral populations holds clues to understanding and defeating them

The Origin of Genetic Information
Laws governing natural selection of prebiotic molecules have been inferred and tested, making it possible to discover how early RNA genes interacted with proteins and how the genetic code developed