16. Consider the following original coding sequence of a gene that codes for a short 3-amino acid polypeptide: 5'-ATGTGGTCATGA-3' Using the genetic code and the amino acid table below, which of the following sequences arises from a non-conservative missense mutation in the original sequence shown above? codon U C UUU UUC UUA UUG- CUU CUC CUA U Phe (F) Leu (L) Leu (L) Second base in codon UCU UCC UCA UCG CCU CCC CCA C Ser (S) Pro (P) UAU UAC UAA UAG A Tyr (Y) STOP CAU 1 CAC CAA cla (0) His (H) G UGU UGC UGA STOI UGG Trp (W) CGU CGC CGA Cys (C) Arg (R) U C A G U C A Last b

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16. Consider the following original coding sequence of a gene that codes for a short 3-amino acid
polypeptide:
5'-ATGTGGTCATGA-3'
Using the genetic code and the amino acid table below, which of the following sequences arises from a
non-conservative missense mutation in the original sequence shown above?
First base in codon
U
A
UUU
UUC-
UUA
UUG-
CUU
CUC
CUA
CUG-
AUU-
ACU
AUC Ile (1)
ACC
AUA-
ACA
AUG Met (M) start ACG
GUU
GCU
GUC
GCC
GUA
GCA
GUG-
GCG
H₂N-
U
Phe (F)
Leu (L)
Leu (L)
Nonpolar side chains; hydrophobic
Val (V)
Side chain (R group)
H
H₂N-C-C-0-
HO
Glycine
(Gly or G)
CH₂
H₂N*-
CH₂
CH₂
H O
Methionine
(Met or M)
Polar side chains; hydrophilic
0
CH₂
Second base in codon
H O
Aspartic acid
(Asp or D)
UCU
UCC
UCA
UCG
CCU
CCC
CCA
CCG
Alanine
(Ala or A)
OH
CH₂
H₂N-C C 0 H₂N-C C 0
H O
Serine
(Ser or S)
H O
Threonine
(Thr or T)
Electrically charged side chains; hydrophilic
OH CH3
CH
-0- H₂N+-
Acidic (negatively charged)
CH₂
H₂N-C-C-O
HO
C
Ser (S)
Pro (P)
CH₂
CH₂
Thr (T)
CH₂
H₂N-C
Ala (A)
Phenylalanine
(Phe or F)
O
-C-0
H O
Glutamic acid
(Glu or E)
H₂N+ C
SH
CH₂
-0
A. 5'-ATGTGGTCTTGA-3'
B. 5'-ATGTGATCATGA-3'
C. 5'-ATGTGGACATGA-3'
D. 5'-ATGGGGTCATGA-3'
E. 5'-ATGTGGGCATGA-3'
HO
Cysteine
(Cys or C)
UAU
UAC
UAA
UAG-
AAU
AAC
AAA
AAG
H₂N+-
CAU
CAC
CAA 1
CAG
GAU
GAC
GAA
GAG
Valine
(Val or V)
с -0- H₂N-
NH₂
CH₂
CH₂
CH₂
CH₂
Tyr (Y)
H O
Lysine
(Lys or K)
STOP
CH3 CH3
CH
H₂N-C-C-0-
HO
A
His (H)
Gln (Q)
Asn (N)
Lys (K)
Asp (D)
Glu (E)
CH,
H₂N-C
O
OH
CH₂
-0
CH3 CH3
CH
CH₂
H₂N-C-C-0-
HO
H O
Tryptophan
(Trp or W)
H O
Tyrosine
(Tyr or Y)
NH
Leucine
(Leu or L)
0
0
UGU
UGC
UGA STOP
UGG Trp (W)
CGU
CGC
CGA
CGG
AGU
AGC
AGA
AGG
GGU-
GGC
GGA
GGG
CH₂
H₂N-C
CH₂
T
CH₂
CH₂
H₂N-C-
NH,0
Basic (positively charged)
NH₂
CNH,
NH
HO
Arginine
(Arg or R)
G
Cys (C)
Arg (R)
Ser (S)
Arg (R)
H O
Asparagine
(Asn or N)
Gly (G)
H₂C
H₂N+
CH3
CH₂
0
CH₂
CH₂
H 0
Proline
(Pro or P)
H₂C-CH
H₂N-C-C-0
HO
Isoleucine
(lle or I)
-NH+
NH
H₂N-C
0
NH,
HO
Histidine
(His or H)
CH₂
-0- H₂N+ C -C-0
U
C
A
G
U
C
A
G
U
C
A
GUC
A
G
CH₂
CH₂
0
H
Glutamine
(Gin or Q)
O
Last base in codon
Transcribed Image Text:16. Consider the following original coding sequence of a gene that codes for a short 3-amino acid polypeptide: 5'-ATGTGGTCATGA-3' Using the genetic code and the amino acid table below, which of the following sequences arises from a non-conservative missense mutation in the original sequence shown above? First base in codon U A UUU UUC- UUA UUG- CUU CUC CUA CUG- AUU- ACU AUC Ile (1) ACC AUA- ACA AUG Met (M) start ACG GUU GCU GUC GCC GUA GCA GUG- GCG H₂N- U Phe (F) Leu (L) Leu (L) Nonpolar side chains; hydrophobic Val (V) Side chain (R group) H H₂N-C-C-0- HO Glycine (Gly or G) CH₂ H₂N*- CH₂ CH₂ H O Methionine (Met or M) Polar side chains; hydrophilic 0 CH₂ Second base in codon H O Aspartic acid (Asp or D) UCU UCC UCA UCG CCU CCC CCA CCG Alanine (Ala or A) OH CH₂ H₂N-C C 0 H₂N-C C 0 H O Serine (Ser or S) H O Threonine (Thr or T) Electrically charged side chains; hydrophilic OH CH3 CH -0- H₂N+- Acidic (negatively charged) CH₂ H₂N-C-C-O HO C Ser (S) Pro (P) CH₂ CH₂ Thr (T) CH₂ H₂N-C Ala (A) Phenylalanine (Phe or F) O -C-0 H O Glutamic acid (Glu or E) H₂N+ C SH CH₂ -0 A. 5'-ATGTGGTCTTGA-3' B. 5'-ATGTGATCATGA-3' C. 5'-ATGTGGACATGA-3' D. 5'-ATGGGGTCATGA-3' E. 5'-ATGTGGGCATGA-3' HO Cysteine (Cys or C) UAU UAC UAA UAG- AAU AAC AAA AAG H₂N+- CAU CAC CAA 1 CAG GAU GAC GAA GAG Valine (Val or V) с -0- H₂N- NH₂ CH₂ CH₂ CH₂ CH₂ Tyr (Y) H O Lysine (Lys or K) STOP CH3 CH3 CH H₂N-C-C-0- HO A His (H) Gln (Q) Asn (N) Lys (K) Asp (D) Glu (E) CH, H₂N-C O OH CH₂ -0 CH3 CH3 CH CH₂ H₂N-C-C-0- HO H O Tryptophan (Trp or W) H O Tyrosine (Tyr or Y) NH Leucine (Leu or L) 0 0 UGU UGC UGA STOP UGG Trp (W) CGU CGC CGA CGG AGU AGC AGA AGG GGU- GGC GGA GGG CH₂ H₂N-C CH₂ T CH₂ CH₂ H₂N-C- NH,0 Basic (positively charged) NH₂ CNH, NH HO Arginine (Arg or R) G Cys (C) Arg (R) Ser (S) Arg (R) H O Asparagine (Asn or N) Gly (G) H₂C H₂N+ CH3 CH₂ 0 CH₂ CH₂ H 0 Proline (Pro or P) H₂C-CH H₂N-C-C-0 HO Isoleucine (lle or I) -NH+ NH H₂N-C 0 NH, HO Histidine (His or H) CH₂ -0- H₂N+ C -C-0 U C A G U C A G U C A GUC A G CH₂ CH₂ 0 H Glutamine (Gin or Q) O Last base in codon
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