Two-Fold Degenerate Sites
The genetic code for phenylalanine
(Phe) is UUY = UUU
or UUC , with either pYrimidine
(Y) in the third position.
The genetic code for glutamine
(Glu) is GAR = GAA
or GAG , with either puRine
(R) in the third position.
Figure © 2000 by Griffiths et al. ; text © 2009 by Steven M. Carr