1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Whose experiments cracked the DNA and discovered unequivocally that a genetic code is a "triplet" ?
A
Nirenberg and Mathaei
B
Morgan and Sturtevant
C
Hershey and Chase
D
Beadle and Tatum
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Removal of introns and joining the exons in a defined order in a transcription unit is called :
A
Transformation
B
Capping
C
Splicing
D
Tailing
3
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
What is not true for genetic code?
A
It is nearly universal
B
A codon in mRNA is read in a noncontiguous fashion
C
It is degenerate
D
It is unambiguous
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
In the DNA molecule:
A
the total amount of purine nucleotides and pyrimidine nucleotides is not always equal
B
there are two strands which run antiparallel one in 5'→ 3' direction and other in 3'→ 5'
C
there are two strands which run parallel in the 5'→ 3' direction
D
the proportion of adenine in relation to thymine varies with the organism
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