Question

A part of an mRNA has the sequence AAA. Use the table below to figure out

which amino acid is coded for by AAA, then use the table to figure out which
change to this sequence would indicate a silent mutation.
UUG)
Messenger
Second base in codon
RNA Codons U
С
А
UUU UCU UAU
UGU
U
UUC
Phe
UCC UAC
UGC)
Cys
C
U
Ser
UCA UAA Stop UGA Stop A
Leu
UCG UAG Stop UGG Trp
CUU
CCU CAUT CGU
His
CUC CCC
CAC)
CGC
Leu
Pro
CUA CCA CAA
CGA
Gin
CUG CCG CAG
CGG
AUU ACUT
AAU
AGU
Asn
Ser
AUC lle ACC AAC) AGC
AUA ACA AAA
Lys
AGA
AUGStart Me ACG AAG)
AGGS
GUU GCU GAUI GGU
GUC
Asp
GCC
GAC
GGC
G
Val
Ala
Gly
GUA GCA GAAU GGA
Glu
GUG) GCG GAG) GGG
Arg
First base in codon
Focopo co poco pull
Third base in codon
A
Thr
Arg
O A. UAA
DACA

Answer 1

AAG

Step-by-step explanation:

is the silent one in this case