MCQ
Read the following and choose the option with all incorrect statements.
(A) Tertiary structure gives the 3-Dimensional view of protein.
(B) Quaternary structure of protein is absolutely necessary for many biological activities of proteins.
(C) The adult Hb shows quaternary structure of protein and it consists of 4 subunits.
(D) The two subunits of Hb molecule consist of a type and two subunits of ẞ type.
(E) In a polypeptide or protein, amino acids are linked by a peptide bond.
(F) In a polysaccharide, the individual monosaccharide are linked by N-glycosidic bond.
(G) In a nucleic acid, a phosphate moiety links the 5'-carbon of one sugar of one nucleotide to the 3-carbon of the sugar of the succeeding nucleotide.
(H) In nucleic acid, the bond between the phosphate and hydroxyl group of sugar is ester bond. As there is one such bond on either side, it is called phosphodiester bond.
(I) The backbone of nucleic acid is formed by sugar-Nitrogen base-sugar chain.
(J) The nitrogen bases are projected perpendicular to the backbone of nucleic acid.
(K) There are 2 hydrogen bonds between A and T and 3 hydrogen bonds between G and C.
(L) In B-DNA, at each step of ascent the strand turns $360^{\circ}$ and rise per base pair would be 3.4nm.
(A) Tertiary structure gives the 3-Dimensional view of protein.
(B) Quaternary structure of protein is absolutely necessary for many biological activities of proteins.
(C) The adult Hb shows quaternary structure of protein and it consists of 4 subunits.
(D) The two subunits of Hb molecule consist of a type and two subunits of ẞ type.
(E) In a polypeptide or protein, amino acids are linked by a peptide bond.
(F) In a polysaccharide, the individual monosaccharide are linked by N-glycosidic bond.
(G) In a nucleic acid, a phosphate moiety links the 5'-carbon of one sugar of one nucleotide to the 3-carbon of the sugar of the succeeding nucleotide.
(H) In nucleic acid, the bond between the phosphate and hydroxyl group of sugar is ester bond. As there is one such bond on either side, it is called phosphodiester bond.
(I) The backbone of nucleic acid is formed by sugar-Nitrogen base-sugar chain.
(J) The nitrogen bases are projected perpendicular to the backbone of nucleic acid.
(K) There are 2 hydrogen bonds between A and T and 3 hydrogen bonds between G and C.
(L) In B-DNA, at each step of ascent the strand turns $360^{\circ}$ and rise per base pair would be 3.4nm.
- AA, C, D, F, G
- BB, D, E, J, K
- ✓B, F, G, I, L
- DA, C, E, G, J