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
Polysome is formed by
A
several ribosomes attached to a single mRNA
B
many ribosomes attached to a strand of endoplasmic reticulum
C
a ribosome with several subunits
D
ribosomes attached to each other in a linear arrangement
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid ?
A
UUA, UCA — Leucine
B
AUG, ACG — Start/Methionine
C
UAG, UGA — Stop
D
GUU, GCU — Alanine
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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