4
MCQ (Single Correct Answer)
Which of the following pairs represents anomers?
A
B
C
D
5
MCQ (Single Correct Answer)
Proteins are found to have two different types of secondary structures viz $\alpha$-helix and $\beta$-pleated sheet structure. $\alpha$-helix structure of protein is stabilised by
A
peptide bonds
B
van der Waals, forces
C
hydrogen bonds
D
dipole-dipole interactions
6
MCQ (Single Correct Answer)
In disaccharides, if the reducing groups of monosaccharides, i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars. Which of the following disaccharide is a non-reducing sugar?
A
B
C
D
7
MCQ (Single Correct Answer)
Which of the following acids is a vitamin?
A
Aspartic and
B
Ascorbic acid
C
Adipic acid
D
Saccharic acid
8
MCQ (Single Correct Answer)
Dinucleotide is obtained by joining two nucleotides together by phosphodiester linkage. Between which carbon atoms of pentose sugars of nucleotides are these linkages present?
A
$5^{\prime}$ and $3^{\prime}$
B
$1^{\prime}$ and $5^{\prime}$
C
$5^{\prime}$ and $5^{\prime}$
D
$3^{\prime}$ and $3^{\prime}$