MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The brainstem is made up of? |
| A. | Midbrain, pons, cerebellum |
| B. | Midbrain, pond, medulla oblongata |
| C. | Diencephalon, medulla oblongata, cerebellum |
| D. | Cerebellum, cerebrum, medulla oblongata |
| Answer» C. Diencephalon, medulla oblongata, cerebellum | |
| 2. |
Tetany is caused by? |
| A. | Hyperthyroidism |
| B. | Hypothyroidism |
| C. | Hypoparathyroidism |
| D. | Hyperparathyroidism |
| Answer» D. Hyperparathyroidism | |
| 3. |
The greatest threat to genetic diversity in agricultural crops is? |
| A. | Extensive use of insecticides and pesticides |
| B. | Extensive use of fertilisers |
| C. | Introduction of high yielding varieties |
| D. | Extensive mixed cropping |
| Answer» B. Extensive use of fertilisers | |
| 4. |
The main aim of the human genome project is _______. |
| A. | to identify and sequence all the genes present in human DNA. |
| B. | to introduce new genes into humans. |
| C. | to remove disease causing genes from human DNA. |
| D. | to develop better techniques for comparing two different human DNA samples. |
| Answer» B. to introduce new genes into humans. | |
| 5. |
The lactase hydrolyzes lactose into? |
| A. | Glucose and galactose |
| B. | Fructose |
| C. | Glucose and fructose |
| D. | Glucose |
| Answer» B. Fructose | |
| 6. |
The agents which are known to cause CJD are? |
| A. | A class of bacteria |
| B. | A class of viruses |
| C. | Fungi |
| D. | Protein particles |
| Answer» E. | |
| 7. |
The loosely arranged non-chlorophyllous parenchyma cells present in lenticels are called? |
| A. | Albuminous cells |
| B. | Complementary cells |
| C. | Passage cells |
| D. | Water stomata |
| Answer» C. Passage cells | |
| 8. |
The main difference between Gram positive and Gram negative bacteria is? |
| A. | Ribosome |
| B. | Cell membrane |
| C. | Cell wall |
| D. | Mitochondria |
| Answer» D. Mitochondria | |
| 9. |
The 2005 Nobel Prize for Physiology / Medicine was awarded to Barry Marshall and Robin Warren of Australia for their discover of ________. |
| A. | human papilloma virus causing cervical cancer |
| B. | bacterium Helicobacter pylori causing peptic ulcer |
| C. | prions, a new biological principle of infection |
| D. | Human Immunodeficiency Virus |
| Answer» C. prions, a new biological principle of infection | |
| 10. |
The presence of corollary corona, sagittate anthers and dumb-bell shaped stigma are the characteristic features of _______. |
| A. | Ravenala madagascariensis |
| B. | Catheranthus roseus |
| C. | Hibiscus rosa-sinensis |
| D. | Musa paradisiaca |
| Answer» C. Hibiscus rosa-sinensis | |
| 11. |
The name of the pacemaker of the heart is? |
| A. | Semilunar valve |
| B. | Juxtaglumerular apparatus |
| C. | S.A. node |
| D. | Lymph node |
| Answer» D. Lymph node | |
| 12. |
The reflex arc, which is made of two neurones is known as? |
| A. | Disynaptic reflex arc |
| B. | Monosynaptic reflex arc |
| C. | Asynaptic reflex arc |
| D. | Polysynaptic refles arc |
| Answer» C. Asynaptic reflex arc | |
| 13. |
The name of Smt. Thimmakka is associated with the? |
| A. | planting and conservation of avenue trees |
| B. | Appiko’ movement |
| C. | conservationof fauna and flora of the western ghats |
| D. | agitations against hydroelectric project |
| Answer» B. Appiko’ movement | |
| 14. |
The respiratory quotient during cellular respiration would depend on___. |
| A. | the nature of the substrate |
| B. | the amount of carbon dioxide released |
| C. | the amount of oxygen utilised |
| D. | the nature of enzymes involved |
| Answer» B. the amount of carbon dioxide released | |
| 15. |
The offspring produced from a marriage have only O or A blood groups. Of the genotypes given below, the possible genotypes of the parents would be? |
| A. | IAIA and IAIO |
| B. | IAIO and IOIO |
| C. | IAIA and IOIO |
| D. | IOIO and IOIO |
| Answer» C. IAIA and IOIO | |
| 16. |
The species, though insignificant in number, determine the existence of many other species in a given ecosystem. Such species is known as? |
| A. | Extinct species |
| B. | Keystone species |
| C. | Endemic species |
| D. | Sacred species |
| Answer» C. Endemic species | |
| 17. |
The part of the brain where the centre for hunger and thirst is located is? |
| A. | Hypothalamus |
| B. | Cerebrum |
| C. | Cerebellum |
| D. | Medulla Oblongata |
| Answer» B. Cerebrum | |
| 18. |
The rosette habit of cabbage can be changed by application of? |
| A. | ABA |
| B. | Ethaphon |
| C. | IAA |
| D. | GA |
| Answer» E. | |
| 19. |
The scientific name of the moth which produce tasar is? |
| A. | Philosomia ricini |
| B. | Bombyx mori |
| C. | Antheraea mylitta |
| D. | Antheraea assamensis |
| Answer» D. Antheraea assamensis | |
| 20. |
The single horned Rhinoceros is protected at _______. |
| A. | Kahna National Park |
| B. | Kaziranga National Park |
| C. | Anashi National Park |
| D. | Rajiv Gandhi National Park |
| Answer» C. Anashi National Park | |
| 21. |
The term, ‘southern blotting’ refers to_______. |
| A. | transfer of DNA fragments from invitro cellulose membrane to electrophoresis gel |
| B. | attachment of probes to DNA fragments |
| C. | transfer of DNA fragments from electrophoresis gel to nitrocellulose sheet. |
| D. | comparison of DNA fragments from two sources |
| Answer» D. comparison of DNA fragments from two sources | |
| 22. |
The sugar present in milk is _______. |
| A. | Glucose |
| B. | Lactose |
| C. | Fructose |
| D. | Sucrose |
| Answer» C. Fructose | |
| 23. |
The types of ribosomes found in prokaryotic cell are ________. |
| A. | 100 S |
| B. | 80 S |
| C. | 60 S |
| D. | 70 S |
| Answer» E. | |
| 24. |
The space between the plasma membrane and the cell wall of a plasmolyzed cell surrounded by a hypertonic solution is occupied by the? |
| A. | hypertonic solution |
| B. | hypotonic solution |
| C. | isotonic solution |
| D. | water |
| Answer» B. hypotonic solution | |
| 25. |
The number of ATP produced when a molecule of glucose undergoes fermentation is? |
| A. | 4 |
| B. | 36 |
| C. | 2 |
| D. | 38 |
| Answer» D. 38 | |
| 26. |
What is a genophore? |
| A. | DNA in prokaryotes |
| B. | DNA and RNA in prokaryotes |
| C. | DNA and protein in prokaryotes |
| D. | RNA in prokaryotes |
| Answer» C. DNA and protein in prokaryotes | |
| 27. |
Vitellogenesis occurs during the formation of? |
| A. | yolk is formed and accumulated in the ovum |
| B. | Oogonial cell in the Graafian follicle |
| C. | Ootid in the fallopian tube |
| D. | Secondary Oocyte in the fallopian tube |
| Answer» B. Oogonial cell in the Graafian follicle | |
| 28. |
Transpiration facilitates________. |
| A. | Opening of stomata |
| B. | Absorption of water by roots |
| C. | Excretion of minerals |
| D. | Electrolyte balance |
| Answer» C. Excretion of minerals | |
| 29. |
The World Intellectual Property Day is observed on ________. |
| A. | February, 29tth |
| B. | June, 30th |
| C. | April, 26th |
| D. | September, 5th |
| Answer» D. September, 5th | |
| 30. |
Tyloses are found in _______. |
| A. | secondary xylem |
| B. | secondary phloem |
| C. | sclerenchyma fibres |
| D. | sclereids |
| Answer» B. secondary phloem | |
| 31. |
What is/are true about heart wood?A. It does not help in water conduction.B. It is also called alburnum.C. It is dark in colour but very soft.D. It has tracheary elements which are filled with tannin, resin, etc. |
| A. | A and D |
| B. | B and D |
| C. | A, B and C |
| D. | B. C and D |
| Answer» B. B and D | |
| 32. |
The term genetic RNA refers to____. |
| A. | the RNA that carries genetic message |
| B. | the RNA that helps gene regulation in lac-operon |
| C. | the RNA present in mitochondria |
| D. | none of the above |
| Answer» B. the RNA that helps gene regulation in lac-operon | |
| 33. |
What will be the codons in m-RNA if the DNA codes are ATG-CAG? |
| A. | TAC – GTC |
| B. | UAC – GUC |
| C. | UCA – TUA |
| D. | TCA – GTC |
| Answer» C. UCA – TUA | |
| 34. |
A dorsal horn is present on the ________ of mulberry silk worm (caterpillar). |
| A. | 5th abdominal segment |
| B. | 8th abdominal segment |
| C. | 2nd thoracic segment |
| D. | Head |
| Answer» C. 2nd thoracic segment | |
| 35. |
To meet the demands of the society, in vitro production of a large number of plantlets in a short duration is practiced in floriculture and horticulture industry today. This is called _______. |
| A. | Soma clonal variation |
| B. | Hybridoma technology |
| C. | Micropropagation |
| D. | Somatic hybridization |
| Answer» D. Somatic hybridization | |
| 36. |
When the blood contains a high percentage of CO2 and a very low percentage of O2, the breathing stops and the person becomes unconscious. This condition is known as? |
| A. | suffocation |
| B. | asphyxia |
| C. | emphycema |
| D. | eupnoea |
| Answer» C. emphycema | |
| 37. |
When the two ecosystems overlap each other, the area is called? |
| A. | Ecotone |
| B. | Ecotype |
| C. | Habitat |
| D. | Niche |
| Answer» B. Ecotype | |
| 38. |
A balanced diet does NOT include ________. |
| A. | Nucleic acids and enzymes |
| B. | Carbohydrates and fats |
| C. | Proteins and vitamins |
| D. | Minerals and salts |
| Answer» B. Carbohydrates and fats | |
| 39. |
When a fresh water protozoan is placed in marine water________. |
| A. | the contractile vacuole disappears |
| B. | the contractile vacuole increases in size |
| C. | a number of contractile vacuoles appear |
| D. | the contractile vacuole remains unchanged |
| Answer» B. the contractile vacuole increases in size | |
| 40. |
Which centre is stimulated during increase in body temperature? |
| A. | Anterior hypothalamus |
| B. | Posterior hypothalamus |
| C. | Limbic system |
| D. | Red nucleus |
| Answer» B. Posterior hypothalamus | |
| 41. |
Which of the following hormones does not naturally occur in plants? |
| A. | IAA |
| B. | GA |
| C. | ABA |
| D. | 2, 4 - D |
| Answer» E. | |
| 42. |
Which function will be lost due to damage of occipital lobe? |
| A. | Hearing |
| B. | Speech |
| C. | Vision |
| D. | Memory |
| Answer» D. Memory | |
| 43. |
Which of the following hormones does not contain a polypeptide? |
| A. | Oxytocin |
| B. | Insulin |
| C. | Antidiuretic hormone |
| D. | Prostaglandin |
| Answer» E. | |
| 44. |
Which of the following is a mineralocorticoid? |
| A. | Testosterone |
| B. | Progesterone |
| C. | Adrenalin |
| D. | Aldosterone |
| Answer» E. | |
| 45. |
When red blood corpuscles containing both A and B antigens are mixed with your blood serum, they agglutinate. Hence your blood group is _______ type. |
| A. | O |
| B. | AB |
| C. | B |
| D. | A |
| Answer» B. AB | |
| 46. |
When the oxygen supply to the tissue is inadequate, the condition is? |
| A. | Dyspnea |
| B. | Hypoxia |
| C. | Asphyxia |
| D. | Apnea |
| Answer» C. Asphyxia | |
| 47. |
Which of the following is the correct pathway for propagation of cardiac impulse? |
| A. | SA node ® AV node ® Bundle of His ® Purkinje fibers |
| B. | AV node ® Bundle of His ® SA node ® Purkinje fibers |
| C. | SA node ® Purkinje fibers ® AV node ® Bundle of His |
| D. | Purkinje fibers ® AV node ® SA node ® Bundle of His |
| Answer» B. AV node ® Bundle of His ® SA node ® Purkinje fibers | |
| 48. |
Which of the following is properly matched? |
| A. | Echinodermata - Asteroidea - Star fish |
| B. | Arthropoda -Insecta -Spider |
| C. | Mollusca - Cephalopoda - Unio |
| D. | Platyhelminthes -Trematoda - Planaria |
| Answer» B. Arthropoda -Insecta -Spider | |
| 49. |
Which of following two hormones are essential for induced breeding of fishes? |
| A. | Vassopressin and oxytocin |
| B. | FSH and LH |
| C. | TSH and ACTH |
| D. | Oestrogen and progesterone |
| Answer» C. TSH and ACTH | |
| 50. |
Ginger and sweet potato are? |
| A. | stem and roots respectively |
| B. | homologous |
| C. | analogous |
| D. | both (a) and (c) |
| Answer» E. | |