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Questions
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1
AIEEE 2007
MCQ (Single Correct Answer)
+4
-1
The secondary structure of a protein refers to
A
$$\alpha$$-helical backbone
B
hydrophobic interactions
C
sequence of $$\alpha$$-amino acids
D
fixed configuration of the polypeptide backbone
2
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The term anomers of glucose refers to
A
isomers of glucose that differ in configurations at carbons one and four (C-1 and C-4)
B
a mixture of (D)-glucose and (L)-glucose
C
enantiomers of glucose
D
isomers of glucose that differ in configuration at carbon one (C-1)
3
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The pyrimidine bases present in DNA are
A
cytosine and adenine
B
cytosine and guanine
C
cytosine and thymine
D
cytosine and uracil
4
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
In both DNA and RNA, heterocyclic base and phosphate ester linkages are at-
A
$$C_5^{'}$$ and $$C_2^{'}$$ respectively of the sugar molecule
B
$$C_2^{'}$$ and $$C_5^{'}$$ respectively of the sugar molecule
C
$$C_1^{'}$$ and $$C_5^{'}$$ respectively of the sugar molecule
D
$$C_5^{'}$$ and $$C_1^{'}$$ respectively of the sugar molecule
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