The Genetic Code for Amino Acids
2nd
t
c
a
g
1st
t
F
S
Y
C
t
3rd
c
L
*
*
a
W
g
c
P
H
R
t
c
Q
a
g
a
I
T
N
S
t
c
K
R
a
M
g
g
V
A
D
G
t
c
E
a
g