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Delhi University Entrance Test (DUET) 2020 Previous Year Question Paper With Answer Key

This post was last modified on 27 December 2020

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DUET Last 10 Years 2011-2021 Question Papers With Answer Key || Delhi University Entrance Test conducted by the NTA


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Topic:- ZOO MSC S2

  1. If Hydra is cut into many pieces [Question ID = 2508]
    1. Each piece will develop into a young Hydra [Option ID = 10026]

      2. --- Content provided by⁠ FirstRanker.com ---

    2. Each piece having a bit of nucleus will develop into a young Hydra [Option ID = 10027]
    3. Each piece having a bit of ectoderm and endoderm will gradually develop into a young Hydra [Option ID = 10028]
    4. Each piece will die [Option ID = 10029]
    Correct Answer :-
    • Each piece having a bit of ectoderm and endoderm will gradually develop into a young Hydra [Option ID = 10028]

    2. --- Content provided by‍ FirstRanker.com ---

  2. Botryoidal tissue is found in [Question ID = 2509]
    1. Neanthes [Option ID = 10030]
    2. Earthworm [Option ID = 10031]
    3. Leeches [Option ID = 10032]
    4. Balanoglossus [Option ID = 10033]
    Correct Answer :-

    --- Content provided by‌ FirstRanker.com ---

    • Leeches [Option ID = 10032]
  3. The excretory organ in Herdmania [Question ID = 2510]
    1. Protonephridium [Option ID = 10034]
    2. Solenocyte [Option ID = 10035]
    3. Neural gland [Option ID = 10036]
    4. Flame cell [Option ID = 10037]

      5. --- Content provided by FirstRanker.com ---

    Correct Answer :-
    • Neural gland [Option ID = 10036]
  4. Aristotle's Lantern is found in [Question ID = 2511]
    1. Echinocardium [Option ID = 10038]
    2. Holothuria [Option ID = 10039]
    3. Echinus [Option ID = 10040]

      4. --- Content provided by‍ FirstRanker.com ---

    4. Cucumaria [Option ID = 10041]
    Correct Answer:-
    • Echinus [Option ID = 10040]
  5. Which one of the following is not an insect? [Question ID = 2512]
    1. Butterfly [Option ID = 10042]
    2. Spider [Option ID = 10043]

      3. --- Content provided by‌ FirstRanker.com ---

    3. Mosquito [Option ID = 10044]
    4. Ant [Option ID = 10045]
    Correct Answer :-
    • Spider [Option ID = 10043]
  6. Gynacophoral canal is found in:- [Question ID = 2513]
    1. Ancylostoma duodenale [Option ID = 10046]

      2. --- Content provided by⁠ FirstRanker.com ---

    2. Schistosoma haematobium [Option ID = 10047]
    3. Ascaris lumbricoides [Option ID = 10048]
    4. Wuchereria bancrofti [Option ID = 10049]
    Correct Answer :-
    • Schistosoma haematobium [Option ID = 10047]

    7. --- Content provided by​ FirstRanker.com ---

  7. The powerful muscle by which the bird raises and propel itself through the air is performed by:- [Question ID = 2514]
    1. Pectoralis minor [Option ID = 10050]
    2. Flexor perforans [Option ID = 10051]
    3. Pectoralis major [Option ID = 10052]
    4. Flexor major [Option ID = 10053]
    Correct Answer :-

    --- Content provided by⁠ FirstRanker.com ---

    • Pectoralis major [Option ID = 10052]
  8. Neuromast organ in fishes are useful as:- [Question ID = 2515]
    1. Current receptors [Option ID = 10054]
    2. Touch receptors [Option ID = 10055]
    3. Thermoreceptors [Option ID = 10056]
    4. Electroreceptors [Option ID = 10057]

      5. --- Content provided by‍ FirstRanker.com ---

    Correct Answer :-
    • Current receptors [Option ID = 10054]
  9. Balanoglossus also known as:- [Question ID = 2516]
    1. Pin worms [Option ID = 10058]
    2. Acorn worm [Option ID = 10059]
    3. Tape worms [Option ID = 10060]

      4. --- Content provided by‍ FirstRanker.com ---

    4. Ring worms [Option ID = 10061]
    Correct Answer :-
    • Acorn worm [Option ID = 10059]
  10. In rabbit, sigmoid notch is present in:- [Question ID = 2517]
    1. Pectoral girdle [Option ID = 10062]
    2. Pelvic girdle [Option ID = 10063]

      3. --- Content provided by‍ FirstRanker.com ---

    3. Tibio-fibula [Option ID = 10064]
    4. Radius-ulna [Option ID = 10065]
    Correct Answer :-
    • Radius-ulna [Option ID = 10065]
  11. Synsacrum in fowl is formed by the fusion of:- [Question ID = 2518]
    1. Thoracic vertebrae [Option ID = 10066]

      2. --- Content provided by⁠ FirstRanker.com ---

    2. Thoracic and lumbar vertebrae [Option ID = 10067]
    3. Thoracic, lumbar and sacral vertebrae [Option ID = 10068]
    4. Thoracic, lumbar, sacral and caudal vertebrae [Option ID = 10069]
    Correct Answer :-
    • Thoracic, lumbar, sacral and caudal vertebrae [Option ID = 10069]

    12. --- Content provided by⁠ FirstRanker.com ---

  12. Which of the following reptiles has four chambered heart? [Question ID = 2519]
    1. Turtle [Option ID = 10070]
    2. Sphenodon [Option ID = 10071]
    3. King cobra [Option ID = 10072]
    4. Crocodile [Option ID = 10073]
    Correct Answer :-

    --- Content provided by‌ FirstRanker.com ---

    • Crocodile [Option ID = 10073]
  13. Female Anopheles can be distinguished from female Culex because it sits [Question ID = 2520]
    1. At an angle with substratum [Option ID = 10074]
    2. Parallel to surface of substratum [Option ID = 10075]
    3. At right angles to surface of substratum [Option ID = 10076]
    4. Without using all six legs [Option ID = 10077]

      5. --- Content provided by‍ FirstRanker.com ---

    Correct Answer :-
    • At an angle with substratum [Option ID = 10074]
  14. The variant hemoglobin in sickle cell anemia binds O2 less efficiently. However, the abnormal allele has not been eliminated from the affected population as it has a selection advantage against [Question ID = 2521]
    1. Pernicious anemia [Option ID = 10078]
    2. Leukemia [Option ID = 10079]
    3. Malaria [Option ID = 10080]

      4. --- Content provided by‌ FirstRanker.com ---

    4. Thalassemia [Option ID = 10081]
    Correct Answer :-
    • Malaria [Option ID = 10080]
  15. Which one of the following is an incorrect match? [Question ID = 2522]
    1. Symbiosis-Trichonympha [Option ID = 10082]
    2. Commensalism-Balantidium [Option ID = 10083]

      3. --- Content provided by​ FirstRanker.com ---

    3. Parasitism-Trypanosoma [Option ID = 10084]
    4. Free living-Paramecium [Option ID = 10085]
    Correct Answer :-
    • Commensalism-Balantidium [Option ID = 10083]
  16. Aortic arch VI gives rise to the pulmonary artery but maintains its connection with the dorsal aorta through:- [Question ID = 2523]
    1. Ductus arteriosus [Option ID = 10086]

      2. --- Content provided by​ FirstRanker.com ---

    2. Ductus caroticus [Option ID = 10087]
    3. Ductus bulbus [Option ID = 10088]
    4. Ductus pneumaticus [Option ID = 10089]
    Correct Answer :-
    • Ductus arteriosus [Option ID = 10086]

    17. --- Content provided by⁠ FirstRanker.com ---

  17. Which one of the following amphibians has partial interventricular septum in heart? [Question ID = 2524]
    1. Siren [Option ID = 10090]
    2. Proteus [Option ID = 10091]
    3. Rana [Option ID = 10092]
    4. Uraeotyphlus [Option ID = 10093]
    Correct Answer :-

    --- Content provided by​ FirstRanker.com ---

    • Siren [Option ID = 10090]
  18. Which part of the middle ear transmits sound vibrations to fenestra rotunda of internal ear:- [Question ID = 2525]
    1. Stapes [Option ID = 10094]
    2. Incus [Option ID = 10095]
    3. Malleus [Option ID = 10096]
    4. Tympanum [Option ID = 10097]

      5. --- Content provided by​ FirstRanker.com ---

    Correct Answer :-
    • Stapes [Option ID = 10094]
  19. Third chamber in the stomach of a ruminant mammal is:- [Question ID = 2526]
    1. Abomasum [Option ID = 10098]
    2. Omasum [Option ID = 10099]
    3. Rumen [Option ID = 10100]

      4. --- Content provided by‌ FirstRanker.com ---

    4. Reticulum [Option ID = 10101]
    Correct Answer :-
    • Omasum [Option ID = 10099]
  20. The type of jaw suspensorium in shark is:- [Question ID = 2527]
    1. Autodiastylic [Option ID = 10102]
    2. Amphistylic [Option ID = 10103]

      3. --- Content provided by FirstRanker.com ---

    3. Hyostylic [Option ID = 10104]
    4. Streptostylic [Option ID = 10105]
    Correct Answer :-
    • Hyostylic [Option ID = 10104]
  21. Which of the following continents is included in the Neotropical faunal realm? [Question ID = 2528]
    1. North America [Option ID = 10106]

      2. --- Content provided by‍ FirstRanker.com ---

    2. South America [Option ID = 10107]
    3. Africa [Option ID = 10108]
    4. Australia [Option ID = 10109]
    Correct Answer :-
    • South America [Option ID = 10107]

    22. --- Content provided by​ FirstRanker.com ---

  22. Darwin's finches represent the example of [Question ID = 2529]
    1. Convergent evolution [Option ID = 10110]
    2. Parallel evolution [Option ID = 10111]
    3. Adaptive radiation [Option ID = 10112]
    4. Co-evolution [Option ID = 10113]
    Correct Answer :-

    --- Content provided by⁠ FirstRanker.com ---

    • Adaptive radiation [Option ID = 10112]
  23. A novel phenotypic trait that helps in success of a taxonomic group and its subsequent radiation is called [Question ID = 2530]
    1. Key innovation [Option ID = 10114]
    2. Adaptive trait [Option ID = 10115]
    3. Evolutionary novelty [Option ID = 10116]
    4. Crucial trait [Option ID = 10117]

      5. --- Content provided by‌ FirstRanker.com ---

    Correct Answer :-
    • Key innovation [Option ID = 10114]
  24. Dinosaurs were result of mass extinction event that took place at the [Question ID = 2531]
    1. End of Devonian period [Option ID = 10118]
    2. End of Cretaceous period [Option ID = 10119]
    3. End of Triassic period [Option ID = 10120]

      4. --- Content provided by‌ FirstRanker.com ---

    4. End of Permian period [Option ID = 10121]
    Correct Answer :-
    • End of Cretaceous period [Option ID = 10119]
  25. Presence of which of the following is an important evidence for organic evolution? [Question ID = 2532]
    1. homologous organs only [Option ID = 10122]
    2. homologous and vestigial organs [Option ID = 10123]

      3. --- Content provided by FirstRanker.com ---

    3. homologous and analogous organs [Option ID = 10124]
    4. analogous and vestigial organs [Option ID = 10125]
    Correct Answer :-
    • homologous and vestigial organs [Option ID = 10123]
  26. Bergman's rule refers to a general tendency of mammals to be [Question ID = 2533]
    1. large in size in colder areas of the their distribution [Option ID = 10126]

      2. --- Content provided by FirstRanker.com ---

    2. smaller in size in areas of the their distribution [Option ID = 10127]
    3. darker pigments in warmer areas of the their distribution [Option ID = 10128]
    4. lighter pigments in warmer areas of the their distribution [Option ID = 10129]
    Correct Answer :-
    • large in size in colder areas of the their distribution [Option ID = 10126]

    27. --- Content provided by⁠ FirstRanker.com ---

  27. Which of the following statement is TRUE? [Question ID = 2534]
    1. Evolution is goal oriented [Option ID = 10130]
    2. Mutations are always harmful [Option ID = 10131]
    3. Variations are necessary for natural selection [Option ID = 10132]
    4. Speciation always requires geographical isolation [Option ID = 10133]
    Correct Answer :-

    --- Content provided by‌ FirstRanker.com ---

    • Variations are necessary for natural selection [Option ID = 10132]
  28. 'Philosophie Zoologique' was written by:- [Question ID = 2535]
    1. Charles Darwin [Option ID = 10134]
    2. Jean-Baptiste Lamarck [Option ID = 10135]
    3. Richard Dawkins [Option ID = 10136]
    4. Russel Wallace [Option ID = 10137]

      5. --- Content provided by‍ FirstRanker.com ---

    Correct Answer :-
    • Jean-Baptiste Lamarck [Option ID = 10135]
  29. Within a small population, variations can occur in gene frequencies by chance rather than natural selection. It may be referred as [Question ID = 2536]
    1. Genetic flow [Option ID = 10138]
    2. Genetic load [Option ID = 10139]
    3. Genetic drift [Option ID = 10140]

      4. --- Content provided by‍ FirstRanker.com ---

    4. Genetic equilibrium [Option ID = 10141]
    Correct Answer :-
    • Genetic drift [Option ID = 10140]
  30. Monarch and Viceroy butterflies are an example of:- [Question ID = 2537]
    1. Mullerian mimicry [Option ID = 10142]
    2. Batesian mimicry [Option ID = 10143]

      3. --- Content provided by‌ FirstRanker.com ---

    3. Peckhamian mimicry [Option ID = 10144]
    4. Vavilovian mimicry [Option ID = 10145]
    Correct Answer :-
    • Batesian mimicry [Option ID = 10143]
  31. The correct route through which pulse may travel in heart is [Question ID = 2538]
    1. SA node> Purkinjee fibre>bundles of His> AV node> heart muscles [Option ID = 10146]

      2. --- Content provided by​ FirstRanker.com ---

    2. SA node> AV node>bundles of His> Purkinjee fibre> heart muscles [Option ID = 10147]
    3. AV node> Purkinjee fibre> SA node> .bundle of His> heart muscles [Option ID = 10148]
    4. AV node> SA node Purkinjee fibre> bundles of His> heart muscles [Option ID = 10149]
    Correct Answer :-
    • SA node> AV node>bundles of His> Purkinjee fibre> heart muscles [Option ID = 10147]

    32. --- Content provided by⁠ FirstRanker.com ---

  32. Which of the following is controlled by autonomous nervous system? [Question ID = 2539]
    1. Papillary reflex [Option ID = 10150]
    2. Swallowing food [Option ID = 10151]
    3. Knee jerk response [Option ID = 10152]
    4. Peristalsis [Option ID = 10153]
    Correct Answer :-

    --- Content provided by‌ FirstRanker.com ---

    • Peristalsis [Option ID = 10153]
  33. Match List I with List II
    List II
    List I
    Vitamins

    --- Content provided by⁠ FirstRanker.com ---

    Diseases
    A. K
    I. Beri-beri
    B. D
    II. Haemorrhagic disease of new born

    --- Content provided by⁠ FirstRanker.com ---

    C. B1
    III. Night blindness
    D. A
    IV. Rickets
    Choose the correct answer from the options given below: [Question ID = 2540]
    1. A III, BII, CIV, D-1 [Option ID = 10154]

      2. --- Content provided by FirstRanker.com ---

    2. AI, BII, CIV, D III [Option ID = 10155]
    3. A III, BI, C - IV, D - II [Option ID = 10156]
    4. AII, BIV, CI, D - III [Option ID = 10157]
    Correct Answer :-
    AII, BIV, C - I, D - III [Option ID = 10157]

    34. --- Content provided by​ FirstRanker.com ---

  34. Which of the following is a light compass response? [Question ID = 2541]
    1. Geomagnetaxis [Option ID = 10158]
    2. Hydrotaxis [Option ID = 10159]
    3. Menotaxis [Option ID = 10160]
    4. Mnemotaxis [Option ID = 10161]
    Correct Answer :-

    --- Content provided by FirstRanker.com ---

    • Menotaxis [Option ID = 10160]
  35. The non-descendence of testis into the scrotal sac is referred as [Question ID = 2542]
    1. Orchidectomy [Option ID = 10162]
    2. Vasectomy [Option ID = 10163]
    3. Hypogonadism [Option ID = 10164]
    4. Cryptorchidism [Option ID = 10165]

      5. --- Content provided by​ FirstRanker.com ---

    Correct Answer :-
    • Cryptorchidism [Option ID = 10165]
  36. Hypophysectomy of the adult female rat prevents the development of:- [Question ID = 2543]
    1. Primordial follicle [Option ID = 10166]
    2. Primary follicle [Option ID = 10167]
    3. Secondary follicle [Option ID = 10168]

      4. --- Content provided by FirstRanker.com ---

    4. Graffian follicle [Option ID = 10169]
    Correct Answer :-
    • Graffian follicle [Option ID = 10169]
  37. Sperm receptor in the mammalian ovum is which of the following? [Question ID = 2544]
    1. ZPT [Option ID = 10170]
    2. ZP2 [Option ID = 10171]

      3. --- Content provided by‍ FirstRanker.com ---

    3. ZP2f [Option ID = 10172]
    4. ZP3 [Option ID = 10173]
    Correct Answer :-
    • ZP3 [Option ID = 10173]
  38. Vasopressin is synthesized by:- [Question ID = 2545]
    1. Pars distalis [Option ID = 10174]

      2. --- Content provided by⁠ FirstRanker.com ---

    2. Pars intermedia [Option ID = 10175]
    3. Pars nervosa [Option ID = 10176]
    4. Hypothalamus [Option ID = 10177]
    Correct Answer :-
    • Hypothalamus [Option ID = 10177]

    39. --- Content provided by FirstRanker.com ---

  39. In the organ of Corti, apical projections of hair cells are in intimate contact with:- [Question ID = 2546]
    1. Reissner's membrane [Option ID = 10178]
    2. Basilar membrane [Option ID = 10179]
    3. Decemet's membrane [Option ID = 10180]
    4. Tectorial membrane [Option ID = 10181]
    Correct Answer :-

    --- Content provided by​ FirstRanker.com ---

    • Tectorial membrane [Option ID = 10181]
  40. The hormone which causes moulting in arthropods is:- [Question ID = 2547]
    1. Thyroxin [Option ID = 10182]
    2. Ecdysone [Option ID = 10183]
    3. Prolactin [Option ID = 10184]
    4. Juvenile hormone [Option ID = 10185]

      5. --- Content provided by‍ FirstRanker.com ---

    Correct Answer :-
    • Ecdysone [Option ID = 10183]
  41. End product of glycolysis in red blood cells is [Question ID = 2548]
    1. Acetyl CoA [Option ID = 10186]
    2. Pyruvic acid [Option ID = 10187]
    3. Lactic acid [Option ID = 10188]

      4. --- Content provided by FirstRanker.com ---

    4. 3-Phosphoglycerate [Option ID = 10189]
    Correct Answer :-
    • Lactic acid [Option ID = 10188]
  42. For a given fixed length of double stranded DNA, melting temperature (Tm) is [Question ID = 2549]
    1. Directly proportional to GC base content [Option ID = 10190]
    2. Inversely proportional to GC base content [Option ID = 10191]

      3. --- Content provided by⁠ FirstRanker.com ---

    3. Directly proportional to AT base content [Option ID = 10192]
    4. Not related to base composition of DNA [Option ID = 10193]
    Correct Answer :-
    • Directly proportional to GC base content [Option ID = 10190]
  43. At pH value greater than pKa of COOH group in the amino acid, the amino acid will be [Question ID = 2550]
    1. Positive charged [Option ID = 10194]

      2. --- Content provided by‍ FirstRanker.com ---

    2. Negative charged [Option ID = 10195]
    3. No charge [Option ID = 10196]
    4. Both positive and negative charges [Option ID = 10197]
    Correct Answer :-
    • Negative charged [Option ID = 10195]

    44. --- Content provided by‌ FirstRanker.com ---

  44. Calcium is stored in the muscle cell [Question ID = 2551]
    1. In the cytoplasm [Option ID = 10198]
    2. In the sarcoplasmic reticulum [Option ID = 10199]
    3. In the mitochondria [Option ID = 10200]
    4. In the golgi apparatus [Option ID = 10201]
    Correct Answer :-

    --- Content provided by‍ FirstRanker.com ---

    • In the sarcoplasmic reticulum [Option ID = 10199]
  45. ATP is synthesized in mitochondria and also in glycolysis. During synthesis of ATP in glycolysis, phosphate is provided by [Question ID = 2552]
    1. glucose-6-phosphate and fructose-6-phosphate [Option ID = 10202]
    2. 3-phospho-gyceraldhyde and di-hydroxyacetone phosphate [Option ID = 10203]
    3. 1,6 bis-phosphofuctose and 3-phosphogyceric acid [Option ID = 10204]
    4. 1,3 bis-phospho glycerate and phosphoenol pyruvate [Option ID = 10205]

      5. --- Content provided by‍ FirstRanker.com ---

    Correct Answer :-
    • 1,3 bis-phospho glycerate and phosphoenol pyruvate [Option ID = 10205]
  46. Fructose intolerance is due to [Question ID = 2553]
    1. Increased production of lactase [Option ID = 10206]
    2. Increased production of amylase [Option ID = 10207]
    3. Reduced production of aldolase [Option ID = 10208]

      4. --- Content provided by‍ FirstRanker.com ---

    4. Reduced production of cellulase [Option ID = 10209]
    Correct Answer :-
    • Reduced production of aldolase [Option ID = 10208]
  47. In presence of oxygen, glycolysis is suppressed and it is called [Question ID = 2554]
    1. Bohr's Effect [Option ID = 10210]
    2. Warburg Effect [Option ID = 10211]

      3. --- Content provided by‍ FirstRanker.com ---

    3. Pasteur Effect [Option ID = 10212]
    4. Haldane's Effect [Option ID = 10213]
    Correct Answer :-
    • Pasteur Effect [Option ID = 10212]
  48. What is the pH of a solution whose hydrogen ion concentration is 3.2 x 10-4 mol/L? [Question ID = 2555]
    1. 3.5 [Option ID = 10214]

      2. --- Content provided by​ FirstRanker.com ---

    2. 4.5 [Option ID = 10215]
    3. 4.0 [Option ID = 10216]
    4. 3.0 [Option ID = 10217]
    Correct Answer :-
    • 3.5 [Option ID = 10214]

    49. --- Content provided by​ FirstRanker.com ---

  49. The detection of restriction fragment length polymorphisms relies on a specialized hybridization technique called [Question ID = 2556]
    1. Southern blotting [Option ID = 10218]
    2. northern blotting [Option ID = 10219]
    3. western blotting [Option ID = 10220]
    4. north-western blotting [Option ID = 10221]
    Correct Answer :-

    --- Content provided by‌ FirstRanker.com ---

    • Southern blotting [Option ID = 10218]
  50. Muscle phosphorylase deficiency cause a glycogen storage disease known as [Question ID = 2557]
    1. McArdle's Disease [Option ID = 10222]
    2. von Gierke's Disease [Option ID = 10223]
    3. Cori's Disease [Option ID = 10224]
    4. Andersen's Disease [Option ID = 10225]

      5. --- Content provided by⁠ FirstRanker.com ---

    Correct Answer :-
    • McArdle's Disease [Option ID = 10222]
  51. A symmetrical molecule that reacts asymmetrically in Krebs cycle [Question ID = 2558]
    1. Citrate [Option ID = 10226]
    2. Succinate [Option ID = 10227]
    3. Malate [Option ID = 10228]

      4. --- Content provided by FirstRanker.com ---

    4. Fumerate [Option ID = 10229]
    Correct Answer :-
    • Citrate [Option ID = 10226]
  52. Which of the following enzymes is involved in binding of malonyl groups? [Question ID = 2559]
    1. Acyl carrier protein [Option ID = 10230]
    2. Acetyl co-A ACP transacetylase [Option ID = 10231]

      3. --- Content provided by⁠ FirstRanker.com ---

    3. Malonyl co-A ACP transferase [Option ID = 10232]
    4. B-ketoacyl ACP synthase [Option ID = 10233]
    Correct Answer :-
    • Malonyl co-A ACP transferase [Option ID = 10232]
  53. Transamination reactions essentially require coenzyme [Question ID= 2560]
    1. NAD [Option ID = 10234]

      2. --- Content provided by⁠ FirstRanker.com ---

    2. Thiamine pyrophosphate [Option ID = 10235]
    3. Pyridoxal phosphate [Option ID = 10236]
    4. Coenzyme A [Option ID = 10237]
    Correct Answer :-
    • Pyridoxal phosphate [Option ID = 10236]

    54. --- Content provided by‌ FirstRanker.com ---

  54. Which of the following trisomy karyotypes has the mildest effect on human development? [Question ID = 2561]
    1. 47, XXX [Option ID = 10238]
    2. 47, XXY [Option ID = 10239]
    3. 47, XX, +13 [Option ID = 10240]
    4. 47, XY,+21 [Option ID = 10241]
    Correct Answer :-

    --- Content provided by FirstRanker.com ---

    • 47, XXX [Option ID = 10238]
  55. Which of the following conditions shows anticipation in paternal transmission? [Question ID = 2562]
    1. Huntington disease [Option ID = 10242]
    2. Marfan syndrome [Option ID = 10243]
    3. Cystic fibrosis [Option ID = 10244]
    4. Fragile X syndrome [Option ID = 10245]

      5. --- Content provided by‌ FirstRanker.com ---

    Correct Answer :-
    • Huntington disease [Option ID = 10242]
  56. Which of the following conditions DOES NOT show multifactorial inheritance? [Question ID = 2563]
    1. Pyloric stenosis [Option ID = 10246]
    2. Schizophrenia [Option ID = 10247]
    3. Spina bifida (neural tube defects) [Option ID = 10248]

      4. --- Content provided by‌ FirstRanker.com ---

    4. Marfan syndrome [Option ID = 10249]
    Correct Answer :-
    • Marfan syndrome [Option ID = 10249]
  57. Mendel discovered principles of inheritance because he [Question ID = 2564]
    1. Observed simultaneously all the characteristics in which the parents differed [Option ID = 10250]
    2. Believed that the hereditary characteristics of two individuals became thoroughly blended in the offspring [Option ID = 10251]

      3. --- Content provided by‍ FirstRanker.com ---

    3. Ignored all characteristics except a few markedly contrasting ones he studied [Option ID = 10252]
    4. Studied only the offspring obtained from a single mating [Option ID = 10253]
    Correct Answer :-
    • Ignored all characteristics except a few markedly contrasting ones he studied [Option ID = 10252]
  58. Cornea transplant in humans is almost never rejected, because [Question ID = 2565]
    1. It is composed of enucleated cells [Option ID = 10254]

      2. --- Content provided by⁠ FirstRanker.com ---

    2. It is a non - living layer [Option ID = 10255]
    3. Its cells are not penetrable by bacteria [Option ID = 10256]
    4. It is avascular [Option ID = 10257]
    Correct Answer :-
    • It is avascular [Option ID = 10257]

    59. --- Content provided by⁠ FirstRanker.com ---

  59. The most sensitive area of the entire larynx and respiratory tract for triggering a cough reflex is [Question ID = 2566]
    1. Glottis [Option ID = 10258]
    2. Respiratory bronchioles [Option ID = 10259]
    3. Laryngopharynx [Option ID = 10260]
    4. Mucus membrane of carina [Option ID = 10261]
    Correct Answer :-

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    • Mucus membrane of carina [Option ID = 10261]
  60. The conjugation between F' and F - cells will be:- [Question ID = 2567]
    1. Two F + cells [Option ID = 10262]
    2. Two F cells [Option ID = 10263]
    3. Two F' cells [Option ID = 10264]
    4. Two Hfr cells [Option ID = 10265]

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    Correct Answer :-
    • Two F' cells [Option ID = 10264]
  61. The modified dihybrid ratio due to recessive epistasis is [Question ID = 2568]
    1. 9:7 [Option ID = 10266]
    2. 9:3:4 [Option ID = 10267]
    3. 12:3:1 [Option ID = 10268]

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    4. 15:1 [Option ID = 10269]
    Correct Answer :-
    • 9:3:4 [Option ID = 10267]
  62. Which of the following aberrations DOES NOT change in chromosomal arm ratio? [Question ID = 2569]
    1. Pericentric inversion [Option ID = 10270]
    2. Paracentric inversion [Option ID = 10271]

      3. --- Content provided by⁠ FirstRanker.com ---

    3. Reciprocal translocation [Option ID = 10272]
    4. Non-reciprocal translocation [Option ID = 10273]
    Correct Answer :-
    • Pericentric inversion [Option ID = 10270]
  63. If AaBbccDdEe is crossed with AaBbCcddEe, the proportion of aabbccddee among progenies will be [Question ID = 2570]
    1. 1/32 [Option ID = 10274]

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    2. 1/64 [Option ID = 10275]
    3. 1/128 [Option ID = 10276]
    4. 1/256 [Option ID = 10277]
    Correct Answer :-
    • 1/256 [Option ID = 10277]

    64. --- Content provided by​ FirstRanker.com ---

  64. In a population of 60 individuals, 42 people were found to have an allele for polydactyly, out of which 38 were found to have an extra digit. The penetrance is:- [Question ID = 2571]
    1. 0.6 [Option ID = 10278]
    2. 0.70 [Option ID = 10279]
    3. 0.90 [Option ID = 10280]
    4. 1.00 [Option ID = 10281]
    Correct Answer :-

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    • 0.90 [Option ID = 10280]
  65. 65) Match the List I with List II
    List I
    List II
    A. Test cross

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    I. Determining the genotype
    B. Epistasis
    II. Gene expression
    C. Pleiotropy
    III. Masking of a gene

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    D. Expressivity
    IV. A single gene affecting many traits
    Choose the correct answer from the options given below: [Question ID = 2572]
    1. A-1, B -II, C-III, D-IV [Option ID = 10282]
    2. A-1, B -III, C-IV, D-II [Option ID = 10283]
    3. A-II, B -III, C-IV, D-I [Option ID = 10284]

      4. --- Content provided by‌ FirstRanker.com ---

    4. A-III, B -IV, C-II, D-1 [Option ID = 10285]
    Correct Answer :-
    A-1, B -III, C-IV, D-II [Option ID = 10283]

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This post was last modified on 27 December 2020