Questions from previous year paper.
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Sr.No | Question Id | Question Description | Question Body | Options |
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1 | DU_J19_MPHIL_BIOPHY_New6july_Q01 | Which of the following is an organelle enclosed by a single membrane: | 1: Lysosomes, --- Content provided by FirstRanker.com --- 2: Ribosomes,3: Mitochondrion, 4: Choloroplast, | |
2 | DU_J19_MPHIL_BIOPHY_New6july_Q02 | Chlorophyll consists of two parts, a metal ion of Magnesium and an organic portion termed as: | 5: Dextran, 6: Globin, 7: Porphyrin, --- Content provided by FirstRanker.com --- 8: Sphingolipid, | |
3 | DU_J19_MPHIL_BIOPHY_New6july_Q03 | Intellectual Property rights granted over creations like music, novels, paintings and cinematic work is classified as: | 9: Creative patent, 10: Copyright, 11: Trademark, 12: Certification | |
4 | DU_J19_MPHIL_BIOPHY_New6july_Q04 | "Dextrose" is an example of which type of macromolecule: | 13: Protein, 14: Carbohydrate, --- Content provided by FirstRanker.com --- 15: Lipid,16: Vitamin, | |
5 | DU_J19_MPHIL_BIOPHY_New6july_Q05 | The secondary structure of proteins is stabilized mainly via : | 17: Hydrogen bonds between main chain atoms of amino acids. 18: Hydrogen bonds between the side chains of amino acids. 19: Hydrogen bonds between main chain and side chains of aminoacids, 20: Ionic bonds between the side atoms of amino acids, | |
6 | DU_J19_MPHIL_BIOPHY_New6july_Q06 | The genetic code is known to be degenerate with several three letter codons coding for the same amino acid. How many codons code for the Methionine amino acid : | 21: 3, --- Content provided by FirstRanker.com --- 22: 1,23: 2, 24: 0, | |
7 | DU_J19_MPHIL_BIOPHY_New6july_Q07 | Which of the following is a method for determining the three dimensional structure of proteins. | 25: Isothermal Titration Calorimetry, 26: X-ray crystallography, 27: Dynamic light scattering, --- Content provided by FirstRanker.com --- 28: Optical microscopy, | |
8 | DU_J19_MPHIL_BIOPHY_New6july_Q08 | In a NATIVE-PAGE experiment, the proteins are separated: | 29: Only on basis of size, 30: Only on basis of charge, 31: Only on the basis of quaternary structure 32: Both the basis of charge and size, | |
9 | DU_J19_MPHIL_BIOPHY_New6july_Q09 | A mRNA of about 1.5kb is expected to code for a protein of the following length: | 33: ~ 500 amino acids, 34: ~ 200 amino acids, --- Content provided by FirstRanker.com --- 35: ~ 1000 amino acids,36: ~ 1500 amino acids, | |
10 | DU_J19_MPHIL_BIOPHY_New6july_Q10 | Which of the following model organisms is used routinely in biological sciences is actually a Frog: | 37: Caenorhabditis elegans, 38: Xenopus tropicalis, 39: Saccharomyces cerevisiae, 40: Danio Rerio, | |
11 | DU_J19_MPHIL_BIOPHY_New6july_Q11 | The bacterial genome typically codes for about _______ genes. | 41: 4,000 , --- Content provided by FirstRanker.com --- 42: 1,500 ,43: 15,000 , 44: 40,000 , | |
12 | DU_J19_MPHIL_BIOPHY_New6july_Q12 | Which of the followings DOES NOT have a membrane-enclosed nucleus in the cell: | 45: Archaea, 46: Fungi, 47: Yeast, --- Content provided by FirstRanker.com --- 48: Protist, | |
13 | DU_J19_MPHIL_BIOPHY_New6july_Q13 | You need a protein sample with concentration of 50mg/ml for your experiment. You have 1000 µL of this sample with protein concentration of 5 mg/mL. Which of the following would lead you to the desired concentration? | 49: Concentrate 80 µL to 10 µL, 50: Concentrate 900 µL to 100 µL, 51: Concentrate 0.99995 L to 0.05 L, 52: Concentrate 0.9 L to 0.01 L, | |
14 | DU_J19_MPHIL_BIOPHY_New6july_Q14 | You have a 5 M solution of NaCl, which needs to be diluted to 1 M concentration. How much water do we add to 100 ml of such solution to make it correct molarity? | 53: 0.5 L, 54: 0.4 L, --- Content provided by FirstRanker.com --- 55: 300 mL,56: 500 mL, | |
15 | DU_J19_MPHIL_BIOPHY_New6july_Q15 | Proteins are known to undergo various modifications after their synthesis, known as post-translational modifications. How many such variations are currently known: | 57: ~20, 58: ~200, 59: ~2000, 60: ~5, | |
16 | DU_J19_MPHIL_BIOPHY_New6july_Q16 | Some proteins are known to carry out multiple functions in an organism. Such proteins are known as: | 61: Universal proteins, --- Content provided by FirstRanker.com --- 62: Sunny proteins,63: Moonlighting proteins, 64: Twinkling proteins | |
17 | DU_J19_MPHIL_BIOPHY_New6july_Q17 | In the acronym "siRNA", the letter "si" stands for: | 65: small ingestible, 66: small international, 67: short inhibition, --- Content provided by FirstRanker.com --- 68: short interfering mRNA, | |
18 | DU_J19_MPHIL_BIOPHY_New6july_Q18 | In protein structure visualization programs, the nitrogen atoms are usually depicted in this color: | 69: Grey, 70: Yellow, 71: Red, 72: Blue, | |
19 | DU_J19_MPHIL_BIOPHY_New6july_Q19 | In prokaryotes, the genes for related function are often present in genetic units that are regulated together. This arrangement is called as: | 73: A linkage group, 74: An Operon, --- Content provided by FirstRanker.com --- 75: A cistron,76: A CDS, | |
20 | DU_J19_MPHIL_BIOPHY_New6july_Q20 | Which of the following techniques can be used to find the secondary structure content of a protein molecule without any information of the three-dimensional structure information? | 77: NMR (Nuclear Magnetic Resonance), 78: Circular dichroism spectroscopy, 79: Size exclusion 80: X-ray crystallography, | |
21 | DU_J19_MPHIL_BIOPHY_New6july_Q21 | Which of the following statements is CORRECT for double-stranded nucleic acids i. Two strands are associated by hydrogen bonds ii. Sequences are complementary and antiparallel iii. The back-bones are made of phosphor-diester bonds iv. Numbers of hydrogen bonds Ibetween two nucleotides are not uniform | 81: All of the above are correct --- Content provided by FirstRanker.com --- 82: All of the above are wrong,83: All of the above are ambiguos | |
22 | DU_J19_MPHIL_BIOPHY_New6july_Q22 | A double-stranded RNA genome isolated from a virus in the stool of a child with gastroenteritis was found to contain 15% uracil. What is the percentage of guanine in the viral genome? | 84: Only (i) and (iii) are correct, 85: 15, 86: 25, 87: 35, --- Content provided by FirstRanker.com --- 88: 75, | |
23 | DU_J19_MPHIL_BIOPHY_New6july_Q23 | A gene encodes a protein with 150 amino acids. There is one intron of 1000bps, a 5'-untranslated region of 100bps and a 3'-untranslated region of 200bps. In the final processed mRNA, how many bases lie between the start and final termination codon? | 89: 1750, 90: 750, 91: 650, 92: 450, | |
24 | DU_J19_MPHIL_BIOPHY_New6july_Q24 | Western blot is used to probe | 93: DNA, 94: RNA, --- Content provided by FirstRanker.com --- 95: Protein,96: Single stranded DNA | |
25 | DU_J19_MPHIL_BIOPHY_New6july_Q25 | Some cells in the adult animals do not divide (e.g., heart cells). These cells enter an inactive stage of the cell cycle called as | 97: G0 phase, 98: G1 phase, 99: S phase, 100: G2 phase, | |
26 | DU_J19_MPHIL_BIOPHY_New6july_Q26 | Which of following is not a protein | 101: Spider venom, --- Content provided by FirstRanker.com --- 102: Rhino horn,103: Cobra venom 104: Jute, | |
27 | DU_J19_MPHIL_BIOPHY_New6july_Q27 | In which of the following cases, drug resistance is known to occur | 105: Mycobacterium tuberculosis 106: HIV, 107: Cancer, --- Content provided by FirstRanker.com --- 108: All of the above, | |
28 | DU_J19_MPHIL_BIOPHY_New6july_Q28 | What does pH 0 indicate? | 109: 1 molar H+ solution, 110: 1 molar OH- solution, 111: A very strong acidic solution, 112: A buffer solution where extra acid is aced, | |
29 | DU_J19_MPHIL_BIOPHY_New6july_Q29 | What is the advantage of glycolysis, since it taps only a small fraction of the energy available in the glucose molecule? | 113: It may be useful when oxygen is unavailable. 114: It is cyclical and the original substrate is regenerated. --- Content provided by FirstRanker.com --- 115: It requires high energy input as ?.,116: It is competitive because a spontaneous reaction is inhibited 117:Statement i and ii are correct 118: Statement ii and iii are correct 119: Statement iii and iv are correct --- Content provided by FirstRanker.com --- 120:Statement i and iv are correct | |
30 | DU_J19_MPHIL_BIOPHY_New6july_Q30 | Which of the following statements are correctly describing the transport system found in plants? i) Xylem: water and nutrients from root to shoots:: Phloem: food synthesized in leaves to other parts ii) Xylem: upward movement only :: Phloem: Both up and down movement iii) Xylem: outside of vascular bundle :: Phloem: centre of vascular bundle iv) Xylem: centre of vascular bundle : : Phloem: outside of vascular bundle | ||
31 | DU_J19_MPHIL_BIOPHY_New6july_Q31 | The attachment site for RNA polymerase on the DNA template is called as | 121: Cistron, 122: Regulator 123: Promoter 124: Intron, | |
32 | DU_J19_MPHIL_BIOPHY_New6july_Q32 | High level of one hormone/protein results in diminution of a second hormone/protein. This phenomena is called as | 125: Negative feedback, 126: Hermaphrodism --- Content provided by FirstRanker.com --- 127: Positive feedback,128: Covariance | |
33 | DU_J19_MPHIL_BIOPHY_New6july_Q33 | The variable region of an antibody is primarily responsible for | 129: Specificity to the foreign antigen, 130: Three-dimensional structure of antibody, 131: Transport of the antibody to a distant location 132: Disulfide bridge formation | |
34 | DU_J19_MPHIL_BIOPHY_New6july_Q34 | Gram staining is an example of | 133: Differential staining, --- Content provided by FirstRanker.com --- 134: Acid fast staining135: Negative staining 136: Spore staining | |
35 | DU_J19_MPHIL_BIOPHY_New6july_Q35 | Kinetic Theory of Gases deals with | 137: macrosocpic property of 141:macroscopic properties of system. 138: microscopic property of system., 142: microscopic properties of system. 139: both microscopic and physical properties of the system, 143: both microscopic and physical of the system. --- Content provided by FirstRanker.com --- 140: neither microscopic nor macroscopic property of the system. 144: neither microscopic nor macroscopic properties of the system. | |
36 | DU_J19_MPHIL_BIOPHY_New6july_Q36 | Thermodynamics deals with | 145: Is equal to the work done in an irreversible process 146: Is greater than the work done in an irreversible process 147: Is lesser than the work done in an irreversible process 148: Is either equal to or greater than the work done in an irreversible process | |
37 | DU_J19_MPHIL_BIOPHY_New6july_Q37 | A system of ideal gas has undergone change from one state to another state. While undergoing the change in state, the work done in a reversible process | 149: Flow of energy in a certain direction, 150: Increase in energy of the system and the surroundings, --- Content provided by FirstRanker.com --- 151: Conservation of energy, the work on or by the system is zero152: None, | |
38 | DU_J19_MPHIL_BIOPHY_New6july_Q38 | The First Law of Thermodynamics deals with | 153: Strong electrostatic interaction between the molecules, 154: Strong interaction between the nuclei of the molecules, 155: Non-negligible number of molecules, 156: Negligible number of molecules., | |
39 | DU_J19_MPHIL_BIOPHY_New6july_Q39 | Van der Waals distance between two molecules in a gas arises due to | 157: Random distribution of velocities., --- Content provided by FirstRanker.com --- 158: Equal distribution of velocities.,159: Linear distribution of velocities., 160: Power law distribution of velocities., | |
40 | DU_J19_MPHIL_BIOPHY_New6july_Q40 | Maxwell Boltzmann distribution of kinetic energy of molecules is based on | 161: Component wavelengths are of different wavelengths. 162: Component wavelengths are of wavelengths, but of same phase. 163: Component wavelengths are of different wavelengths but of same phase.. --- Content provided by FirstRanker.com --- 164: Component wavelengths are of wavelengths and phases | |
41 | DU_J19_MPHIL_BIOPHY_New6july_Q41 | Resonance occurs when | 165: Diamagnetic 166: Paramagnetic 167: Ferromagnetic 168: None., | |
42 | DU_J19_MPHIL_BIOPHY_New6july_Q42 | Oxygen Molecule (O2) is | 169: An aliphatic compoun, 170: A homocyclic aromatic compoun, --- Content provided by FirstRanker.com --- 171: A heterocyclic aromatic compoun,172: A heterocyclic aliphatic compoun | |
43 | DU_J19_MPHIL_BIOPHY_New6july_Q43 | Purine is | 173: Symmetric 174: Asymmetric | |
44 | DU_J19_MPHIL_BIOPHY_New6july_Q44 | Optically active organic compounds must have | 175: No carbon 176: Double bond | |
45 | DU_J19_MPHIL_BIOPHY_New6july_Q45 | The frequencies of the following electromagnetic radiations are of the order | 177:Visible> uv 178: X-ray > uv --- Content provided by FirstRanker.com --- 179: Ultraviolet> X-ray180:X ray > visible | |
46 | DU_J19_MPHIL_BIOPHY_New6july_Q46 | The sum of the series 1,2,4,8,16,..........2n is | 181: N2, 182: 2n, 183: 2n-1, 184: None, | |
47 | DU_J19_MPHIL_BIOPHY_New6july_Q47 | Three resistors 1O, 2 O, 3O are combined in series. What is the equivalent resistance of the combinations? | 185: 10 O, --- Content provided by FirstRanker.com --- 186: 6 O,187: 5 O, 188: 25 O, | |
48 | DU_J19_MPHIL_BIOPHY_New6july_Q48 | The curve x2/4 +y2/9 =1 has major & minor axes | 189: 2 & 2 respectively 190: 3 & 3 respectively 191: 2 & 3 respectively --- Content provided by FirstRanker.com --- 192: 3 & 2 respectively | |
49 | DU_J19_MPHIL_BIOPHY_New6july_Q49 | For a chemical reaction the Equilibrium constant is related to the Forward Rate Constant kf and Backward Rate Constant kb as below. | 193: K= kf + kb 194: K= kf - kb 195: K= kf / kb 196: K= kf x kb | |
50 | DU_J19_MPHIL_BIOPHY_New6july_Q50 | The total change in entropy for an irreversible process is | 197:0,, 198: Positive, --- Content provided by FirstRanker.com --- 199: Negative,200: both positive & negative |
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