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question_answer1)
Which of the following is the correct order of priority of group in D-glyceraldehyde?
A)
\[OH(1),CHO(2),\text{ }C{{H}_{2}}OH(3)\] and \[H(4)\] done
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B)
\[OH(1),\,\,C{{H}_{2}}\,\,OH(2),\,\,CHO(3)\] and \[H(4)\] done
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C)
\[C{{H}_{2}}OH(1),\,\,CHO(2),\,\,OH(3)\] and \[H(4)\] done
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D)
\[CHO(1),\,\,OH(2),\,\,C{{H}_{2}}OH(3)\] and \[H(4)\] done
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question_answer2)
Glucose on reaction with Fehlings solution gives
A)
cupric oxide done
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B)
cuprous oxide done
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C)
saccharic acid done
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D)
Both (b) and (c) done
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question_answer3)
Glucose + Tollens reagent \[\to \] Silver mirror, the above process shows
A)
presence of \[COOH\] group done
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B)
presence of keto group done
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C)
presence of \[CHO\] group done
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D)
presence of \[CON{{H}_{2}}\] group done
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question_answer4)
In the following structure, anomeric carbon is |
|
A)
1 done
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B)
2 done
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C)
3 done
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D)
4 done
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question_answer5)
Glucose has difference from fructose in that it
A)
does not undergo hydrolysis done
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B)
gives silver mirror with Tollens reagent done
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C)
monosaccharide done
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D)
None of the above done
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question_answer6)
In a protein molecule various amino acids are linked together by
A)
\[\beta \]-glycosidic bond done
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B)
peptide bond done
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C)
dative bond done
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D)
\[\alpha \]-glycosidic bond done
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question_answer7)
Which of the following compounds can form a Zwitter ion?
A)
Benzoicacid done
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B)
Acetanilide done
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C)
Aniline done
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D)
Glycine done
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question_answer8)
Which structure(s) of proteins remains(s) intact during denaturation process?
A)
Both secondary and tertiary structures done
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B)
Primary structure only done
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C)
Secondary structure only done
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D)
Tertiary structure only done
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question_answer9)
The correct statement regarding RNA and DNA, respectively is
A)
The sugar component in RNA is ribose and the sugar component in DNA is 2-deoxyribose done
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B)
The sugar component in RNA is arabinose and the sugar component in DNA is ribose done
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C)
The sugar component in RNA is 2-deoxy ribose and the sugar component in DNA is arabinose done
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D)
The sugar component in RNA is arabinose and the sugar component in DNA is 2-deoxyribose done
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question_answer10)
A codon has a sequence of ...A... and specifies a particular ...B... that is to be incorporated into ...C... . What are A, B, C?
A)
A-3 bases B-Aminoacid C-Carbohydrate done
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B)
A-3 acids B-Carbohydrate C-Protein done
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C)
A-3 bases B-Protein C-Amino acid done
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D)
A-3 bases B-Amino acid C-Protein done
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question_answer11)
Which is not the correct statement about RNA and DNA?
A)
DNA is active in virus whereas RNA never appears in virus done
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B)
DNA exists as dimer while RNA is usually single-stranded done
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C)
DNA contains deoxyribose as its sugar and RNA contains ribose done
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D)
RNA contains uracil in place of thymine (found in DNA) as a base done
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question_answer12)
The phenomenon of mutation is
A)
chemical change in DNA molecule done
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B)
production of macromolecules done
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C)
synthesis of micromolecules done
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D)
invasion of foreign microorganism done
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question_answer13)
Which of the following is incorrect?
A)
B)
Functional isomerism is shown by \[C{{H}_{3}}C{{H}_{2}}OH\]and \[C{{H}_{3}}OC{{H}_{3}}\] done
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C)
Fructose is a disaccharide sugar done
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D)
Glucose is a monosaccharide sugar done
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question_answer14)
A)
A 1 B 3 C 2 D 4 done
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B)
A 2 B 3 C 1 D 4 done
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C)
A 1 B 2 C 3 D 4 done
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D)
A 2 B 1 C 3 D 4 done
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question_answer15)
The spatial arrangement of two or more polypeptide chains with respect to each other is known as
A)
primary structure done
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B)
secondary structure done
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C)
tertiary structure done
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D)
quaternary structure done
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