1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
During translation initiation in prokaryotes, a GTP molecule is needed in : -
A
Association of 30S mRNA with formy-lmet-tRNA
B
Formation of formyl-met-tRNA
C
Association of 50S subunit of ribosome with initiation complex
D
Binding of 30S subunit of ribosome with mRNA
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
In the genetic code dictionary, how many codons are used to code for all the 20 essential amino acids : -
A
64
B
20
C
60
D
61
3
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
4
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
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