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. |
Which of the following substances can cure Parkinson’s disease? |
| A. | GABA |
| B. | Acetylcholine |
| C. | Dopamine |
| D. | Glutamic acid |
| Answer» D. Glutamic acid | |
| 2. |
Which of the following would be in insignificant amount in xylem sap? |
| A. | Nitrates |
| B. | Phosphates |
| C. | Water |
| D. | Sugar |
| Answer» E. | |
| 3. |
Which one is imino acid? |
| A. | Pepsin |
| B. | Proline |
| C. | Cysteine |
| D. | Renin |
| Answer» C. Cysteine | |
| 4. |
Which one of the following animal phyla does not possess a coelom? |
| A. | Platyhelminthes |
| B. | Annelida |
| C. | Mollusca |
| D. | Echinodermata |
| Answer» B. Annelida | |
| 5. |
Which one of the following bacterium is used for production of transgenic plants? |
| A. | Staphylococcus aureus |
| B. | Agrobacterium tumefaciens |
| C. | Escherichia coli |
| D. | Bacillus thuringiensis |
| Answer» C. Escherichia coli | |
| 6. |
The largest organ of the human body is the? |
| A. | kidneys |
| B. | spleen |
| C. | liver |
| D. | skin |
| Answer» E. | |
| 7. |
Which one of the following diseases is caused by Nosema bombycis in mulberry silkworm? |
| A. | Pebrine |
| B. | Muscadine |
| C. | Flacherie |
| D. | Grasserie |
| Answer» B. Muscadine | |
| 8. |
Which one of the following is a unicellular, nonmotile desmid? |
| A. | Clostridium |
| B. | Chlorobium |
| C. | Cosmarium |
| D. | Chromatium |
| Answer» D. Chromatium | |
| 9. |
Which one of the following is a driving force for the process of ‘passive absorption of water in roots’? |
| A. | Root pressure |
| B. | The increase in imbibitional pressure in root cells. |
| C. | Transpiration in leaves |
| D. | Activity of aquaporins |
| Answer» D. Activity of aquaporins | |
| 10. |
Which one of the following cells is not a phagocytic cell? |
| A. | Basophil |
| B. | Macrophage |
| C. | Monocyte |
| D. | Neutrophil |
| Answer» B. Macrophage | |
| 11. |
Which one of the following immunoglobulins is found as pentamer? |
| A. | IgG |
| B. | IgM |
| C. | IgA |
| D. | IgE |
| Answer» C. IgA | |
| 12. |
Which of the following prevents the conversion of prothrombin to thrombin in an undamaged blood vessel? |
| A. | Calcium ions |
| B. | Thromboplastin |
| C. | Fibrinogen |
| D. | Heparin |
| Answer» E. | |
| 13. |
Which of the following species is restricted to a specific area? |
| A. | Sibling species |
| B. | Allopatric species |
| C. | Sympatric species |
| D. | Endemic species |
| Answer» E. | |
| 14. |
Which one of the following human cells do not contain mitochondria? |
| A. | Red blood cell |
| B. | Liver cell |
| C. | Nerve cell |
| D. | White blood cell |
| Answer» B. Liver cell | |
| 15. |
Which of the following is related to humoral immunity? |
| A. | T-lymphocyte |
| B. | B-lymphocyte |
| C. | P-lymphocyte |
| D. | I-lymphocyte |
| Answer» C. P-lymphocyte | |
| 16. |
Which one of the following is an example of chlorophyllous thallophyte? |
| A. | Spirogyra |
| B. | Volvarialla |
| C. | Nephrolepis |
| D. | Gnetum |
| Answer» B. Volvarialla | |
| 17. |
Useful part of nicotiana is? |
| A. | stem |
| B. | root |
| C. | plant |
| D. | leaf |
| Answer» E. | |
| 18. |
Which one of the following is not a second messenger in hormone action? |
| A. | Calcium |
| B. | Sodium |
| C. | cAMP |
| D. | cGMP |
| Answer» C. cAMP | |
| 19. |
Which one of the following is NOT a method of soil conservation? |
| A. | Overgrazing |
| B. | Mulching |
| C. | Crop rotation |
| D. | Strip cropping |
| Answer» B. Mulching | |
| 20. |
Which one of the following is an exotic carp species? |
| A. | Barbus stigma |
| B. | Cyprinus carpio |
| C. | Labeo bata |
| D. | Cirrhinus mrigala |
| Answer» C. Labeo bata | |
| 21. |
Which one of the following is NOT an antitranspirant? |
| A. | PMA |
| B. | BAP |
| C. | Silicon oil |
| D. | Low viscosity |
| Answer» C. Silicon oil | |
| 22. |
Which one of the following is mainly responsible for green house effect? |
| A. | SO2 |
| B. | CO2 |
| C. | CO |
| D. | O2 |
| Answer» C. CO | |
| 23. |
Which one of the following is not related to guttation? |
| A. | Water is given out in the form of droplets |
| B. | Water given out is impure |
| C. | Water is given out during daytime |
| D. | None of the above |
| Answer» D. None of the above | |
| 24. |
Which one of the following is NOT the function of insulin? |
| A. | Increase the oxidation of glucose in the cells. |
| B. | Increases the permeability of cell membrane to glucose. |
| C. | Initiates the formation of hepatic glycogen from excess of glucose. |
| D. | Initiates the conversion of glycogen to glucose. |
| Answer» E. | |
| 25. |
Which one of the following is the most primitive ancestor of man? |
| A. | Australopithecus |
| B. | Homo habilis |
| C. | Homo neanderthalensis |
| D. | Rampithecus punjabicus |
| Answer» E. | |
| 26. |
Steroid hormone is derived from? |
| A. | vitamin |
| B. | protein |
| C. | cholesterol |
| D. | None of these |
| Answer» D. None of these | |
| 27. |
Which one of the following is polysaccharide? |
| A. | Glycogen |
| B. | Sucrose |
| C. | Lactose |
| D. | Maltose |
| Answer» B. Sucrose | |
| 28. |
Catkin is a type of? |
| A. | plant |
| B. | flower |
| C. | placentation |
| D. | inflorescence |
| Answer» E. | |
| 29. |
Which one of the following is NOT the reason for very high load of bilirubin in a newborn? |
| A. | The liver of the newborn is too young to cope up with the heavy load of bilirubin. |
| B. | Excessive red blood corpuscles in the newborn burst, releasing the bilirubin. |
| C. | Insoluble bilirubin in the intestine is reabsorbed by the blood. |
| D. | Mother’s milk contains a high amount of bilirubin. |
| Answer» E. | |
| 30. |
Which one of the following pairs is an example for lateral meristem? |
| A. | Interfascicular cambium and phellem |
| B. | Phellogen and fascicular cambium |
| C. | Procambium and phelloderm |
| D. | Phellogen and phelloderm |
| Answer» C. Procambium and phelloderm | |
| 31. |
2n = l6 in a primary spermatocyte which is in metaphase of first meiotic division. What shall be the total number of chromatids in each of the secondary spermatocyte? |
| A. | 8 |
| B. | 16 |
| C. | 24 |
| D. | 32 |
| Answer» C. 24 | |
| 32. |
A female Anopheles mosquito can be recognized by? |
| A. | Proboscis long and palpi short |
| B. | Proboscis short and palpi long |
| C. | Proboscis and palpi are long and more or less of equal length |
| D. | Both proboscis and palpi are short |
| Answer» D. Both proboscis and palpi are short | |
| 33. |
BY the statement ‘survival of the fittest’, Darwin meant that ________. |
| A. | The strongest of all species survives |
| B. | The most intelligent of the species survives |
| C. | The cleverest of the species survives |
| D. | The most adaptable of the species to changes survives |
| Answer» E. | |
| 34. |
BCG vaccine is used against? |
| A. | HIV |
| B. | Malaria |
| C. | T.B. |
| D. | None of these |
| Answer» D. None of these | |
| 35. |
BT brinjal is an example of transgenic crops. In this, BT refers to? |
| A. | Bacillus tuberculosis |
| B. | Biotechnology |
| C. | Betacarotene |
| D. | Bacillus thuringiensis |
| Answer» E. | |
| 36. |
Casparian strips are present in the ________ of the root. |
| A. | epiblema |
| B. | cortex |
| C. | perycycle |
| D. | endodermis |
| Answer» E. | |
| 37. |
ECG is used for the diagnosis of ailments of the? |
| A. | liver |
| B. | skin |
| C. | heart |
| D. | kidneys |
| Answer» D. kidneys | |
| 38. |
Blood stains are found at the site of a murder. lf DNA profiling technique is to be used for identifying the criminal, which of the following is ideal for use? |
| A. | Erythrocytes |
| B. | Leucocytes |
| C. | Platelets |
| D. | Serum |
| Answer» C. Platelets | |
| 39. |
Bovine spongiform encephalopathy is a disease caused by prions in _______. |
| A. | cow |
| B. | sheep |
| C. | man |
| D. | potato |
| Answer» B. sheep | |
| 40. |
Nosema bombycis which causes pebrine in silk worms is a? |
| A. | Virus |
| B. | Bacterium |
| C. | Protozoan |
| D. | Fungus |
| Answer» D. Fungus | |
| 41. |
Name the hormone that has no role in menstruation? |
| A. | LH |
| B. | FSH |
| C. | GH |
| D. | TSH |
| Answer» D. TSH | |
| 42. |
Most of the endangered species are the victims of? |
| A. | Habitat destruction |
| B. | Over-hunting |
| C. | Acid rain |
| D. | Competition with introduced species |
| Answer» B. Over-hunting | |
| 43. |
Pick the mammal with true placenta? |
| A. | Kangaroo |
| B. | Echidna |
| C. | Platypus |
| D. | Mongoose |
| Answer» E. | |
| 44. |
Ovule integument gets transformed into? |
| A. | seed |
| B. | fruit wall |
| C. | seed coat |
| D. | cotyledons |
| Answer» D. cotyledons | |
| 45. |
Osteomalacia is a deficiency disease of______. |
| A. | Infants due to protein energy malnutrition |
| B. | Adults due ot protein energy malnutrition |
| C. | Adults due to Vitamin D deficiency |
| D. | Infants due to Vitamin K deficiency |
| Answer» D. Infants due to Vitamin K deficiency | |
| 46. |
A highly evolved human brain contains approximately? |
| A. | 100 nerve cells |
| B. | 100 millon nerve cells |
| C. | 10000000 nerve cells |
| D. | 10000 millon nerve cells |
| Answer» E. | |
| 47. |
Pieces of plant tissue used in tissue culture is called? |
| A. | Explant |
| B. | Somaclone |
| C. | Inoculant |
| D. | Clone |
| Answer» B. Somaclone | |
| 48. |
Rods and cones of eyes are modified? |
| A. | polar neuron |
| B. | bipolar neuron |
| C. | by multipolar neuron |
| D. | None of these |
| Answer» C. by multipolar neuron | |
| 49. |
Palaeontologists unearthed a human skull during excavation. A small fragment of the scalp tissue was still attached to it. Only little DNA could be extracted from it. lf the genes of the ancient man need to be analysed, the best way of getting sufficient amount of DNA from this extract is? |
| A. | Subjecting the DNA to polymerase chain reaction |
| B. | Subjecting the DNA to gel electrophoresis |
| C. | Treating the DNA with restriction endonucleases |
| D. | Hybridising the DNA with a DNA probe |
| Answer» B. Subjecting the DNA to gel electrophoresis | |
| 50. |
Pollen grains of a plant whose 2n = 28 are cultured to get callus by tissue culture method. What would be the number of chromosomes in the cells of the callus? |
| A. | 21 |
| B. | I4 |
| C. | 56 |
| D. | 28 |
| Answer» C. 56 | |