NOTE WN20A: The weight of 440 single-stranded RNA molecules is calculated as (the molecular weight) × (440/Avogadro’s number), where the molecular weight is 330 g/mole/base. This gives 665 g.
NOTE WN20B: Dawkins and Gould nicely summarized their different viewpoints when they reviewed each other’s books, in the 1997 issue of the journal Evolution.