DUET Last 10 Years 2011-2021 Question Papers With Answer Key || Delhi University Entrance Test conducted by the NTA
| Sr.No | Question Id | Question Body | Options | Description |
|---|---|---|---|---|
| 1 | 1015 | The best nucleophile among the following is | 1-, Br-, CI-, OH- | DU_J19_MSC_B, IOSCI_Q01 |
| 2 | 1016 | The symmetry element present in a molecule of chloroform is | C2, C3, C4, C6 | DU_J19_MSC_B, IOSCI_Q02 |
| 3 | 1017 | The symmetry element present in a molecule of benzene is | C3, C4, C5, C6 | DU_J19_MSC_B, IOSCI_Q03 |
| 4 | 1018 | Which of the following atoms is essential for E1cB reaction to take place | Fluo, Bror, Sulf, Sele | DU_J19_MSC_B, IOSCI_Q04 |
| 5 | 1019 | Which metal ion is present in the active site of alcohol dehydrogenase | Ca2, Zn2, Mg2, Cd2 | DU_J19_MSC_B, IOSCI_Q05 |
| 6 | 1020 | The most basic ion among the following is | Etho, Hyd, Acet, Nitra | DU_J19_MSC_B, IOSCI_Q06 |
| 7 | 1021 | The metal salt present in Ziegler natta catalyst is | TiCl, NiCI, SnC, AICI | DU_J19_MSC_B, IOSCI_Q07 |
| 8 | 1022 | The sequence of the bacteriophage ØX174 was delineated by | Jam, Frar, Frec, Francis Cr | DU_J19_MSC_B, IOSCI_Q08 |
| 9 | 1023 | The redox potential of molecular oxygen is | Posi, Neg, zero, Frac | DU_J19_MSC_B, IOSCI_Q09 |
| 10 | 1024 | The total number of codons in human beings is | 63, 64, 65, 66 | DU_J19_MSC_B, IOSCI_Q10 |
| 11 | 1114 | Which of the following buffers can be sterilized in an autoclave at 15ILBs pressure | Phos with 10%, Phos with 10%, Phos Saline wit, Phos Saline wit 10% aluco | DU_J19_MSC_B, IOSCI_Q100 |
| 12 | 1025 | The molecule discovered by Alexander Fleming in 1928 was | Ben:, Ben:, Pen, Aspi | DU_J19_MSC_B, IOSCI_Q11 |
| 13 | 1026 | The geometry of [PtCl4]2- complex is | tetra, squa, octa, squa | DU_J19_MSC_B, IOSCI_Q12 |
| 14 | 1027 | Porphyrins contain which of the following heterocyclic rings | Pyrr, Thio, Fura, Diox | DU_J19_MSC_B, IOSCI_Q13 |
| 15 | 1028 | Which of the following metal ions can intercalate into graphite | Sc, Ti, V, K | DU_J19_MSC_B, IOSCI_Q14 |
| 16 | 1029 | What are the three atoms present in borazine | B, N, H; B, N, C; N, C, H; B, C, H | DU_J19_MSC_B, IOSCI_Q15 |
| 17 | 1030 | Rhombic sulphur consists of | S6 r, S7 r, S8 r, S10 r | DU_J19_MSC_B, IOSCI_Q16 |
| 18 | 1031 | Wilkinson's catalyst contains the transition metal | Cr, Mn, Fe, Rh | DU_J19_MSC_B, IOSCI_Q17 |
| 19 | 1032 | 1,3-butadiene contains x number of pi electrons where x is | 2, 4, 6, 8 | DU_J19_MSC_B, IOSCI_Q18 |
| 20 | 1033 | Methyl orange is used as | a Le, a Le, an a, as a | DU_J19_MSC_B, IOSCI_Q19 |
| 21 | 1034 | Valeric acid contains the following number of carbon atoms | 4, 5, 6, 7 | DU_J19_MSC_B, IOSCI_Q20 |
| 22 | 1035 | The formation of isobutylene from tert-butyl bromide is an example of | nucleophilic substitution reaction, addition reaction, reduction reaction, elimination reaction | DU_J19_MSC_B, IOSCI_Q21 |
| 23 | 1036 | The reaction of benzoyl chloride with ammonia yields | Ben:, Anil, Ben:, Ben: | DU_J19_MSC_B, IOSCI_Q22 |
| 24 | 1037 | The reaction of pyrrole with chloroform and KOH yields | 2-PH, 2-H, 2-Py, Non | DU_J19_MSC_B, IOSCI_Q23 |
| 25 | 1038 | 2-Picoline is also known as | 2-M, 2-H, 2-ca, Non | DU_J19_MSC_B, IOSCI_Q24 |
| 26 | 1039 | Sodio-ethylacetoacetate reacts with alkyl chloride to yield | mor ethylaceto, alky, acet, 2 m | DU_J19_MSC_B, IOSCI_Q25 |
| 27 | 1040 | LiAlH4 reacts with carboxylic acids to yield | este, Alka, Alco, Alke | DU_J19_MSC_B, IOSCI_Q26 |
| 28 | 1041 | Trans-2-butene has a dipole moment of | 0, 0.5, 1, 1.5 | DU_J19_MSC_B, IOSCI_Q27 |
| 29 | 1042 | Cumene is used to manufacture | Ben:, Tolu, Pher, 1,2--- | DU_J19_MSC_B, IOSCI_Q28 |
| 30 | 1043 | -C=O shows a lambda max in the UV region in the range of | 100-, 150, 270-, 400- | DU_J19_MSC_B, IOSCI_Q29 |
| 31 | 1044 | Aniline reacts with aqueous bromine to yield | Bror, Ben:, 2,4, | DU_J19_MSC_B, IOSCI_Q30 |
| 32 | 1045 | The antibiotic nonactin contains the following heterocyclic ring | Pher, Thio, Fura, Pyrr, Imic | DU_J19_MSC_B, IOSCI_Q31 |
| 33 | 1046 | The reaction of phenyl magnesium bromide with ethylene oxide yields | 2-ph, Pher, 2 m acid, Pher | DU_J19_MSC_B, IOSCI_Q32 |
| 34 | 1047 | Binap usually forms complexes with | Na & , Ca & , Sn & , Ru S | DU_J19_MSC_B, IOSCI_Q33 |
| 35 | 1048 | Griesofulvin is an effective | Ana, Anti, Anti, Anti | DU_J19_MSC_B, IOSCI_Q34 |
| 36 | 1049 | Which of the following is not a G-protein coupled receptor? | Glyc, Adre, Glut, Mus | DU_J19_MSC_B, IOSCI_Q35 |
| 37 | 1050 | Protein kinase A is | Com cyclic AMP, Allos cyclic AMP, Affe only unde circumsta, Acti | DU_J19_MSC_B, IOSCI_Q36 |
| 38 | 1051 | Site directed mutagenesis facilitated research on | Carb, Prot, Lipic, Fats | DU_J19_MSC_B, IOSCI_Q37 |
| 39 | 1052 | Repressors in prokaryotes bind to | Pror, Enha, Ope Horr element, Tran, Tran, Rep, Non | DU_J19_MSC_B, IOSCI_Q38 |
| 40 | 1053 | Actinomycin D is an inhibitor of | Cata | DU_J19_MSC_B, IOSCI_Q39 |
| 41 | 1054 | Role of sigma factor in bacterial RNA polymerase is | Posi polymeras DNA temp, Terr synthesis, Unw, DNA | DU_J19_MSC_B, IOSCI_Q40 |
| 42 | 1055 | RNA primer is removed from the Okazaki fragment by | DNA, DNA, RNA | DU_J19_MSC_B, IOSCI_Q41 |
| 43 | 1056 | Ubiquitin is a | Prot, Prot, Com electron tr, Prot protein for | DU_J19_MSC_B, IOSCI_Q42 |
| 44 | 1057 | In which phase of cell cycle is DNA replicated? | G1 p, S ph, G2 p, M ph | DU_J19_MSC_B, IOSCI_Q43 |
| 45 | 1058 | Which of the following bacterial operon is not controlled by attenuation? | Arab, Tryp, Leuc, Hist, Ribc, Lysc, Cyto, Myo | DU_J19_MSC_B, IOSCI_Q44 |
| 46 | 1059 | Which of the following serves as bactericidal agent? | Pror, Cata, Tem, Cati | DU_J19_MSC_B, IOSCI_Q45 |
| 47 | 1060 | The ? subunit of polymerase has a function of | Sup lag behinc, Sup move fast | DU_J19_MSC_B, IOSCI_Q46 |
| 48 | 1061 | Arrange the running pattern of plasmid in agarose gel in presence of electric field | Sup move fast, Sup not move | DU_J19_MSC_B, IOSCI_Q47 |
| 49 | 1062 | Cancer is caused by | unco, unco, rupt, loss cells, | DU_J19_MSC_B, IOSCI_Q48 |
| 50 | 1063 | Migration of cancerous cells from the site of origin to other parts of the body forming secondary tumor is called | diap, met, prol, mitco | DU_J19_MSC_B, IOSCI_Q49 |
| 51 | 1064 | Which one of the following therapies will involve only the cancerous cells not the normal cells in treatment | imm, surc, aror, cher | DU_J19_MSC_B, IOSCI_Q50 |
| 52 | 1065 | Which one of the following cancers does not form a solid neoplasm | leuk, lymp, lipor, sarc | DU_J19_MSC_B, IOSCI_Q51 |
| 53 | 1066 | Incubating EGF ligand in cultured cell promotes | cellu activation, EGF leading to, Inhi to prolifer., Deg ligands, | DU_J19_MSC_B, IOSCI_Q52 |
| 54 | 1067 | Replicative senescence is due to | stab telomeras, deg telomeras, Telo, Telo telomeras | DU_J19_MSC_B, IOSCI_Q53 |
| 55 | 1068 | RAS protein activation leads to | Acti suppresso, Acti | DU_J19_MSC_B, IOSCI_Q54 |
| 56 | 1069 | Retinoblastoma protein phosphorylation leads to | Inac kinase pat, Inac antiapopto, cell, G1 a, G1 t, bind | DU_J19_MSC_B, IOSCI_Q55 |
| 57 | 1070 | The reason why there is a sudden shift in the electrical potential of the neuron (from about -70mv to about +50mv) during an action potential is largely due to the sudden influx of ions. | Pota, Sod, Calc, Chlo | DU_J19_MSC_B, IOSCI_Q56 |
| 58 | 1071 | The action potential is first formed in the | Cell, ?, Den, first on the axC | DU_J19_MSC_B, IOSCI_Q57 |
| 59 | 1072 | The term refers to the constant state of contraction of a certain number of fibers within a muscle. | Sum, Hyp, Atro, Tone | DU J19 MSC B, IOSCI_Q58 |
| 60 | 1073 | Which of the following is most likely to cause the heart to go into spastic contraction? | Incr temperatu, Dec fluid potas, Exce potassium, Exce calcium io | DU_J19_MSC_B, IOSCI_Q59 |
| 61 | 1074 | The term "brain of gut" refers to : | Ente, Cells, Auto system, Migr | DU_J19_MSC_B, IOSCI_Q60 |
| 62 | 1075 | Final common pathway for oxidation of carbohydrates, lipids and proteins is | Glyc, Pent pathway, Kreb | DU_J19_MSC_B, IOSCI_Q61 |
| 63 | 1076 | Which micronutrient prevents neural tube defects in the developing Fetus | Elec, Thia, Pyri, Fola, Niac | DU_J19_MSC_B, IOSCI_Q62 |
| 64 | 1077 | Which part of cell acts as a Capacitor? | Lipic membrane, Prot membrane, Nucl, Golc | DU_J19_MSC_B, IOSCI_Q63 |
| 65 | 1078 | The chief fuel for energy production in human brain during starvation is: | Cho, Fatt, Ketc, Ami | DU_J19_MSC_B, IOSCI_Q64 |
| 66 | 1079 | The final acceptor of electrons during oxidative phosphorylation is: | H2O, 02, CO2, NAC | DU_J19_MSC_B, IOSCI_Q65 |
| 67 | 1080 | The dilution plate count | Can the log ph curve sinc, Yield those pha curve in w dividina., Uses produce p viability., all o | DU_J19_MSC_B, IOSCI_Q66 |
| 68 | 1081 | Antonie Philips van Leeuwenhoek | cred microorga | DU_J19_MSC_B, IOSCI_Q67 |
| 69 | 1082 | Gram positive bacteria responsible for food poisoning is/are | Reco animalcule like seeds, disc attenuation which he s teeth., All c | DU_J19_MSC_B, IOSCI_Q68 |
| 70 | 1083 | Which of the following is best used for long term storage of microbial samples | ?, Pse, Clos, All c | DU_J19_MSC_B, IOSCI_Q69 |
| 71 | 1084 | Gram staining was introduced by | Chri, Alfre, Rob, Loui | DU_J19_MSC_B, IOSCI_Q70 |
| 72 | 1085 | Which of the following is not a gram negative bacteria | Clos, Vibr, Esch, Borc | DU_J19_MSC_B, IOSCI_Q71 |
| 73 | 1086 | The method of successful treatment of botulism prior to appearance of botulism symptom involve administration of | Anti, Anal, Anti, Anti | DU_J19_MSC_B, IOSCI_Q72 |
| 74 | 1087 | Large parasite such as helminthes may be killed extracellularly by the action of | Basc, Mon, Eosi, Neu | DU_J19_MSC_B, IOSCI_Q73 |
| 75 | 1088 | Coir of commerce is | a fib coconut e, a fib coconut st, a fib coconut m, a fib coconut e | DU_J19_MSC_B, IOSCI_Q74 |
| 76 | 1089 | The meaning of the word callous is | Brav, hear, rude, Non | DU_J19_MSC_B, IOSCI_Q75 |
| 77 | 1090 | The meaning of the word ephemeral is | Gos:, Tran, Tran, Opa | DU_J19_MSC_B, IOSCI_Q76 |
| 78 | 1091 | The meaning of the word cumbersome is | Burc, Ligh, Clea, Sorr | DU_J19_MSC_B, IOSCI_Q77 |
| 79 | 1092 | The meaning of the word renegade is | Brav, Cow, Trai, Sold | DU_J19_MSC_B, IOSCI_Q78 |
| 80 | 1093 | The meaning of the word dither is | Vaci, Stat, Fore, Stre | DU_J19_MSC_B, IOSCI_Q79 |
| 81 | 1094 | The word opposite in meaning to the word zeal is | letha, enth, cour, ill, | DU_J19_MSC_B, IOSCI_Q80 |
| 82 | 1095 | The word opposite in meaning to the word stoic is | emc, stoli, unpl, qua | DU_J19_MSC_B, IOSCI_Q81 |
| 83 | 1096 | Factors of 42 are | 1,12, 1,9, 1,6, 1,4, | DU_J19_MSC_B, IOSCI_Q82 |
| 84 | 1097 | The sum of the coefficients in the monomials 3a2b and -2ab2 is | 5, -1, 1, -6, | DU_J19_MSC_B, IOSCI_Q83 |
| 85 | 1098 | What should be added to 3x2+4 to get 9x2-7 | 6x2-, 6x2+, 12x2, 12x2 | DU_J19_MSC_B, IOSCI_Q84 |
| 86 | 1099 | 15x=21; x=? | 7/5, 5/7, 3/7, 7/3 | DU_J19_MSC_B, IOSCI_Q85 |
| 87 | 1100 | (x/2)-1= (x/3)+4; x=? | 15, 30, 45, 60, | DU_J19_MSC_B, IOSCI_Q86 |
| 88 | 1101 | The genetic material of Tobacco Mosaic Virus is a | dsD, ssR, ds R, ss D | DU_J19_MSC_B, IOSCI_Q87 |
| 89 | 1102 | The fruiting bodies in Agaricus and Morchella are | AscC, Basi Ascocarps, Basi, AscC Basidiocar | DU_J19_MSC_B, IOSCI_Q88 |
| 90 | 1103 | Which of the following macroscopic disease symptoms is NOT typical of virus infections in plants? | Stur in internoc, Mos vein cleari, Epin developm, Pust blotches o | DU_J19_MSC_B, IOSCI_Q89 |
| 91 | 1104 | In bryophytes, meiosis occurs in the | gam gametang, spor protonema, gam sperm and, spor produce s | DU_J19_MSC_B, IOSCI_Q90 |
| 92 | 1105 | In Gymnosperms, the female gametophyte develops from the | Hap, Dipl, Nuc, Hap mother ce | DU_J19_MSC_B, IOSCI_Q91 |
| 93 | 1106 | "Kewda oil" is obtained from which one of the following plant species? | Panc, Lava, Ros, Narc | DU_J19_MSC_B, IOSCI_Q92 |
| 94 | 1107 | Recombinant frequency of 1% is equivalent to | 10 ?, 20 ?, 1 m, 5 m | DU_J19_MSC_B, IOSCI_Q93 |
| 95 | 1108 | ALU elements are | Trar, Jum, SINI, LINE | DU_J19_MSC_B, IOSCI_Q94 |
| 96 | 1109 | Multiple alleles of a gene control inheritance of | skin, colo, sickl, bloo | DU_J19_MSC_B, IOSCI_Q95 |
| 97 | 1110 | Bacterial flagella imparts motility to the cell by | und, rota, glidi, both movemen movemen | DU_J19_MSC_B, IOSCI_Q96 |
| 98 | 1111 | Viral replication within the cells is inhibited by | IL-4, IL-1, IFN, TNF | DU_J19_MSC_B, IOSCI_Q97 |
| 99 | 1112 | Which of the following toxicity can occur due to single exposure? | Acut, Sub, Sub, Chro | DU_J19_MSC_B, IOSCI_Q98 |
| 100 | 1113 | Which of the following statement is incorrect | In ic chromatoc protein is solution.., In a chromatoc used to pu, The filtration c based on charge of, All c | DU_J19_MSC_B, IOSCI_Q99 |
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