無風的日子

Symbol Description Bases represented
A adenosine / A
C cytidine / C
G guanosine / G
T thymidine / T
U uridine / U
W weak / A T
S strong / C G
M amino / A C
K keto / G T
R purine / A G
Y pyrimidine / C T
B not A / C G T
D not C / A G T
H not G / A C T
V not T / A C G
N any base (not a gap) / A C G T