1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
What would happen if in a gene encoding a polypeptide of 50 amino acids, 25th codon (UAU) is mutated to UAA ?
A
A polypeptide of 49 amino acids will be formed
B
A polypeptide of 25 amino acids will be formed
C
Two polypeptides of 24 and 25 amino acids will be formed
D
A polypeptide of 24 amino acids will be formed
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as 'start' or 'stop' codon ?
A
UUU – Stop
B
UAC – Tyrosine
C
UGU – Leucine
D
UCG – Start
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Degeneration of a genetic code is attributed to the : -
A
Second member of a codon
B
Third member of a codon
C
First member of a codon
D
Entire codon
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Convergent evolution is illustrated by : -
A
Bacterium and protozoan
B
Rat and dog
C
Dogfish and whale
D
Starfish and cuttle fish
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