5. A gene has a base sequence of GTC. Due to a mutation, the base sequence changes to GTG. Answer the following questions using the codon table below.
UCU
UUA
CCU
Messenger
Second base in codon
RNA Codons U
с
A
UUU
UAU
UUC
Phel
UCC
(UAC) Tyr UGC) Cys
U
Ser
Leu UCA UAA Stop UGA Stop
UUG UOG UAG Stop UGG Tip
CUU
CAU CGU
CUC |ccc
CGC
C Leu Pro
Ag
CUA
Gin
CGA
CUGI COG CAG CGG
AUU ACU AAU AGU
AUC
Ile
ACC
Ser
AAC!
AN
Thr
AUA ACA AAA
AGA
Arg
AUGACGI
Lys
AAG AGG
GUU
GCU
GAU GGU
GUC GCC GAC
Asa
GGC
G
Val
Ala
GUA
GCA
GAA
GUG GCG GAG! GGG
0
First base in codon
CÁC His
CAAT
Do solblola oltre
CCA
Third base in codon
As AGC
GuGGA
a) What are the bases of mRNA coded for by this section of DNA, before the
mutation? Hint: In RNA, A pairs with U. (1 point)
b) What are the bases of mRNA coded for by this section of DNA, after the
mutation? Hint: In RNA, A pairs with U. (1 point)