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Khub.info Learn TNPSC exam and online pratice
Q1. A disease that occurs periodically in a widespread area causing devastating damage to crop plants is referred to as:
Q2. Match the plant disease in List I with the causative agent in List II and select the correct answer using the codes given below the lists: List I (Plant disease) — List II (Causative agent) A. Kamal bunt — 1. Fungus B. Citrus dieback — 2. Bacterium C. Sesamum — 3. Virus phyllody D. Tundu disease — 4. Mycoplasma — 5. Nematode
Q3. Which of the following plant/animal diseases are not caused by viruses? [1. Bunchy top, 2. Kuru, 3. Leaf Curl, 4. Potato spindle-tuber] Select the correct answer from the alternatives given below:
Q4. Which of the following species of grapes is most commonly used for making wines?
Q5. A pair of chromosomes in fruit fly and humans determines sex. These are referred to as sex chromosomes. What is the name given to the other chromosomes?
Q6. Consider the following genetic disorders (diseases) in human beings: [1. Down syndrome, 2. Hemophilia, 3. Lesch-Nyhan syndrome, 4. Thalasemia] Which of these disorders are sex-linked?
Q7. Gene interaction between nonallelic genes that results in the suppression of expression of one gene by the other is called:
Q8. Some of the leading wheat-producing countries of the world are USA, India, China, and the Russian Federation. Select the countries from the following in correct sequence according to their production
Q9. An extremely useful drug used for the treatment of heart ailments is obtained from foxglove (Digitalis). Which part of the plant is mainly used for this purpose?
Q10. The Central Drug Research Institute of India is located at
Q11. Which of the following is/are antifungal drug/s?
Q12. Lac, commonly used to prepare bangles etc. is a resinous substance exuded from an insect which is more or less endemic to India. This insect thrives on:
Q13. In olden days when the refrigerators did not exist. it was customary to boil milk twice or thrice in a day to prevent it from becoming sour, the reason being
Q14. Match List I with List II and select the correct answer from the codes given below the lists: List I (Drug) — List II (Source) A. Quinine — 1. Leaves B. Digitalis — 2. Fruits C. Rauwolfia — 3. Stem bark D. Heroin — 4. Roots
Q15. Human female hormone which is not a steroid is
Q16. While writing, the main bones in the hand that help hold the pen in position are
Q17. The foetal body temperature in mammals is regulated by
Q18. Xerophthalmia is caused by the dietary deficiency of
Q19. HIV positive infections that are occurring everyday in the world are around
Q20. The cornea, aqueous humor, lens and vitreous humor comprise a process by which images of external objects may be focused on the retina in chordates through
Q21. The disease that kills more people than lung cancer as a consequence of air pollution is:
Q22. During the course of development cord is derived from
Q23. Miliaria is:
Q24. The largest and most successful group of organisms on earth comprises
Q25. Glucose occurs in nature in the combined form as polysaccharides which on hydrolysis yield glucose. These polysaccharides are
Q26. The drug most widely tried against AIDS virus is
Q27. A mammal able to produce a secretion that is pungent and causing severe irritation on victim's skin as a defence when attacked is
Q28. Dr. J.C. Venter's pioneering and brilliant work on unveiling the complete genetic sequence, the 580,007 base pairs for Mycoplasma gcnitalium, had been conducted at
Q29. The largest wild life sanctuary in India is
Q30. Cercaria is a:
Q31. How many days after taking a cholera vaccine should a pilgrim be allowed to attend the 'Kumbh mela'?
Q32. Various activities that required for controlling AIDS are [1. immunization, 2. surveillance of the patients, 3. safety in blood transfusion, 4. health education and public awareness] Select the correct answer from the codes given below:
Q33. After Naina Sahni was brutally murdered, there was a most horrendous revelation that her body was stuffed in the 'tandoor' of a restaurant and burnt beyond recognition before it could be taken out. In the absence of any witness to identify her body the tests performed to prove the correct identity of the victim was [1. skull reconstruction, 2. ultrasound and detailed autopsy, 3. DNA fingerprinting, 4. CAT scanning] Choose the correct answer from the codes given below:
Q34. Match the items of List I with List II and select the correct answer by using the codes given below the lists. |List I—List II A. Lymph — 1. Insect's blood B. Plasma — 2. Iron-enriched lymph C. Serum — 3. Defibrinated plasma D. Haemolymph — 4. Tissue fluid — 5. Fluid component of blood
Q35. Match the items of List I with List II and select the correct answer by using the codes given below the lists. List I—List II A. Jean Bapiste — 1. 1822-1884 Lamarck B. Charles Darwin — 2. 1834-1914 C. August Weismann — 3. 1744-1829 D. Gregor Mendel — 4. 1809-1882
Q36. Match the items of List I with List II and select the correct answer by using the codes given below the lists. List I—List II A. Syrinx — 1. Vocal chords in reptiles B. Pharynx — 2. Connective tissue component C. Larynx of the wind pipe — 3. Anterior portion that emits sound D. Matrix — 4. Portion of alimentary canal between mouth cavity and oesophagus — 5. Vocal chords in birds.
Q37. Match the items of List I with List II and select the correct answer by using the codes given below the lists. List I—List II A. Thrombocyte — 1. Proteolytic enzyme clotting blood B. Thrombus — 2. A blood platelet C. Thrombin — 3. Coagulation D. Thrombosis — 4. Clot formed in blood vessel
Q38. Match the items of List I with List II and select the correct answer by using the codes given below the lists. List I (National Park) — List II (State) A. Gir Forest — 1. Gujarat B. Kaziranga National Park— 2. Karnataka C. Kanha National Park — 3. Uttar Pradesh D. Bandipur National Park — 4. Madhya Pradesh — 5. Assam
Q39. Match the items of List I with List II and select the correct answer by using the codes given below the lists. List I (Pollutant) —List II (Health effects on acute exposure) A. Carbon monoxide— 1. Lung irritation B. Sulphur dioxide— 2. Headache, dizziness decreased physical performance C. Nitrogen oxides— 3. Aggravation of asthma, respiratory tract inflammation D. Photochemical oxidants— 4. Respiratory irritation, eye irritation.
Q40. Question consist of two statements, one labelled the 'Assertion A' and the other labelled the 'Reason R'. Examine the two statements carefully and decide if the Assertion A and the reason R are individually true and if so, whether the reason is a correct explanation of the Assertion. Select your answers to these questions from the codes given below. [Assertion (A); People of blood type A or O make anti B-antibodies, those of blood type B or O make anti-A antibodies, and those of blood type AB make neither type of antibodies.—Reason (R): The clinical significance of the ABO blood groups is that transfusion of blood containing A or B red-cell antigens into persons who make an­tibodies against them results in agglutination reaction in which the donor red blood cells are clumped.]
Q41. Question consist of two statements, one labelled the 'Assertion A' and the other labelled the 'Reason R'. Examine the two statements carefully and decide if the Assertion A and the reason R are individually true and if so, whether the reason is a correct explanation of the Assertion. Select your answers to these questions from the codes given below. [Assertion [A): Human milk is richer than cow's milk in lactoferrin, an iron binding protein that inhibits bacterial growth, especially that of Escherichia coli, a very common agent of intestinal infection.— Reason (R): Cow's milk contains mainly IgG and, therefore cannot provide protection against intestinal infection.]
Q42. Question consist of two statements, one labelled the 'Assertion A' and the other labelled the 'Reason R'. Examine the two statements carefully and decide if the Assertion A and the reason R are individually true and if so, whether the reason is a correct explanation of the Assertion. Select your answers to these questions from the codes given below. [Assertion (A): With an average annual temperature of 18 degree C (64 degree F) and rainfall of 200 to 400 cm a year, the tropical rain forest is one of the richest and most complex biomes on earth.—Reason (R): The soils of these forests are thick and extremely poor in nutrients, and because the ground is bare, many animals and insects live on treetop.]
Q43. Question consist of two statements, one labelled the 'Assertion A' and the other labelled the 'Reason R'. Examine the two statements carefully and decide if the Assertion A and the reason R are individually true and if so, whether the reason is a correct explanation of the Assertion. Select your answers to these questions from the codes given below. [Assertion (A): 2, 4-D is often used as a weedicide in wheat fields but not in mustard fields.—Reason (R): It selectively kills broad-leaved weeds (plants) and will also kill mustard plants if sprayed in mustard fields.]
Q44. Question consist of two statements, one labelled the 'Assertion A' and the other labelled the 'Reason R'. Examine the two statements carefully and decide if the Assertion A and the reason R are individually true and if so, whether the reason is a correct explanation of the Assertion. Select your answers to these questions from the codes given below. [Assertion (A): Health has been declared a fundamental human right.— Reason (R): It is the responsibility of the government to provide health care to all people in equal measure.]
Q45. Question consist of two statements, one labelled the 'Assertion A' and the other labelled the 'Reason R'. Examine the two statements carefully and decide if the Assertion A and the reason R are individually true and if so, whether the reason is a correct explanation of the Assertion. Select your answers to these questions from the codes given below. [Assertion (A): India's soymeal exports may get a boost after 'mad cow' disease became a big menace in Europe.—Reason (R): There is a growing global demand for substituting animal feed with vegetable protein after the 'mad cow' disease controversy in Britain.]
Q46. Question consist of two statements, one labelled the 'Assertion A' and the other labelled the 'Reason R'. Examine the two statements carefully and decide if the Assertion A and the reason R are individually true and if so, whether the reason is a correct explanation of the Assertion. Select your answers to these questions from the codes given below. [Assertion (A): During the course of human evolution, there was a tendency for the concerned species to gradually walk erect.— Reason (R): The erect posture would have facilitated finding food and sighting enemies as well as freeing the hands for defence.]
Q47. Match List I with List II and select the correct an­swer using the codes given as follows: List I (Activity) — List II (Aim) A. Medical care — 1. Prevention of breeding of insect vectors. B. Environmental sanitation — 2. Supervision of food and milk trade C. Prevention and control of communicable diseases — 3. Visits and immunization D. Maternal and Child health, Family planning — 4. Treatment and and hospitalisation of sick persons
Q48. Which of the following antibiotics is/are obtained from species of the same bacterium, Streptomyccs? [1. Aureomycin, 2. Neomycin, 3. Polymyxin, 4. Streptomycin] Select the correct answer from the codes given below:
Q49. Consider the following plants [1. Maize, 2. Soyabean, 3. Sugarcane, 4. Wheat] Which of these are C4 plants?
Q50. In the event of a fall of a woman in the bathroom, the head of the femur separated off the bone. An X-ray revealed that it did not fit into