A
DNA
B
RNA polymerase
C
pre-messenger RNA
D
exons
E
intron
F
spliceosome
G
messenger RNA
H
excised intron
GG
nuclear membrane
HH
nuclear pore
I
transfer RNA
J
large ribosomal subunit
K
small ribosomal subunit
L
start codon
M
stop codon
N
tRNA activation
O
anticodon
P
polypeptide chain
Q
protein primary structure
R
protein folding
S
translation
T
amino acid
U
amine
V
carboxyl
W
residue
X
excision