1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
A
Thymine, Uracil — Pyrimidines
B
Guanine, Adenine — Purines
C
Uracil, Cytosine — Pyrimidines
D
Adenine, Thymine — Purines
2
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
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Amino acid sequence, in protein synthesis is decided by the sequence of -
A
cDNA
B
mRNA
C
tRNA
D
rRNA
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
One turn of the helix in a B-form DNA is approximately -
A
20 nm
B
3.4 nm
C
2 nm
D
0.34 nm
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