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 nitrogen fixing bacteria present in the root nodules of leguminous plant is |
| A. | salmonella |
| B. | clostridium |
| C. | rhizobium |
| D. | pseudomonas |
| Answer» D. pseudomonas | |
| 2. |
Cellular respiration occurs in |
| A. | centromere |
| B. | nucleus |
| C. | mitochondria |
| D. | golgi complex |
| Answer» D. golgi complex | |
| 3. |
Gymnosperms are |
| A. | open seeded plants |
| B. | non-flowering plants |
| C. | closed seeded plants |
| D. | aquatic plants |
| Answer» B. non-flowering plants | |
| 4. |
The apparatus used to demonstrate fermentation is |
| A. | Respirometer |
| B. | Thistle funnel |
| C. | Kuhne's tube |
| D. | Wilmott's bubbler |
| Answer» D. Wilmott's bubbler | |
| 5. |
Which one of the following is not reserve food of fungi |
| A. | Glycogen |
| B. | Fat |
| C. | Starch |
| D. | Both A and B |
| Answer» D. Both A and B | |
| 6. |
Both extra and intracellular digestion take place in |
| A. | Dugesia |
| B. | Star Fish |
| C. | Poly stoma |
| D. | Turbellaria |
| Answer» B. Star Fish | |
| 7. |
The matrix of blood is known as |
| A. | Plasma |
| B. | Blood protein |
| C. | RBC and WBC |
| D. | WBC and Platelets |
| Answer» B. Blood protein | |
| 8. |
Sickle-cell anaemia is due to |
| A. | Viruses |
| B. | Genes |
| C. | Hormones |
| D. | Bacteria |
| Answer» C. Hormones | |
| 9. |
The process of transfer of genetic information from DNA to RNA is |
| A. | Translocation |
| B. | Transversion |
| C. | Translation |
| D. | Transcription |
| Answer» E. | |
| 10. |
Which one is the largest cells in white blood corpuscles |
| A. | Lymphocytes |
| B. | Basophils |
| C. | Monoscytes |
| D. | Neutrophils |
| Answer» D. Neutrophils | |
| 11. |
The ulcer is mostly due to infections by a bacterium called |
| A. | Helicobacter pylori |
| B. | Strepto cocci |
| C. | Staphylo cocci |
| D. | Mycobacterium tuberculae |
| Answer» B. Strepto cocci | |
| 12. |
Which one of the following phylum is characterised by absence of true coelom |
| A. | Nematoda |
| B. | Echinodermata |
| C. | Mollusca |
| D. | Annelida |
| Answer» B. Echinodermata | |
| 13. |
In cockroach the cavities of foregut and hindgut are lined with |
| A. | Salivary Glands |
| B. | Gizzard |
| C. | Cuticle |
| D. | Chitinous teeth |
| Answer» D. Chitinous teeth | |
| 14. |
Which of the following is not a part of the Kidney structure |
| A. | Malpighian body |
| B. | Glomerulus |
| C. | Loop of Henle |
| D. | Malpighian tubule |
| Answer» E. | |
| 15. |
Which one of the following is the essential nutrient element required in the photosynthetic oxidation of water |
| A. | Magnesium |
| B. | Manganese |
| C. | Molybdenum |
| D. | Iron |
| Answer» C. Molybdenum | |
| 16. |
The prokaryotic cell lacks |
| A. | Nuclear envelope and DNA |
| B. | Nuclear envelope and plastids |
| C. | DNA and mitochondria |
| D. | Cell membrance and nucleus |
| Answer» C. DNA and mitochondria | |
| 17. |
Kupffer's cells occur in |
| A. | Brain |
| B. | Kidney |
| C. | Liver |
| D. | Spleen |
| Answer» D. Spleen | |
| 18. |
Which hormone maintains normal blood pressure by regulating excretion of water |
| A. | Renin |
| B. | Angiotensin |
| C. | Angiotensinogen |
| D. | Aldosterone |
| Answer» E. | |
| 19. |
Which gland is active during chilhood but atrophies in adult |
| A. | Adrenal |
| B. | Thymus |
| C. | Thyroid |
| D. | Pancreas |
| Answer» C. Thyroid | |
| 20. |
Which blood protein maintains normal blood pressure |
| A. | Albumin |
| B. | Globulin |
| C. | Fibrinogen |
| D. | Collagen |
| Answer» B. Globulin | |
| 21. |
A sequence of DNA which is transcribed but not translated |
| A. | Axon |
| B. | Cistron |
| C. | Intron |
| D. | Codon |
| Answer» D. Codon | |
| 22. |
Which of the following glands is both endocrine and exocrine |
| A. | Pancreas |
| B. | Pituitary |
| C. | Adrenal |
| D. | Pineal |
| Answer» B. Pituitary | |
| 23. |
Two species occupying same or overlapping area are |
| A. | Allopatric |
| B. | Parapatric |
| C. | Sympatric |
| D. | Peripatric |
| Answer» D. Peripatric | |
| 24. |
Biogeographical regions are also called |
| A. | Zones |
| B. | Epoch |
| C. | Realms |
| D. | Era |
| Answer» D. Era | |
| 25. |
A sequence of DNA that has the ability to change its position is |
| A. | Cistron |
| B. | Exon |
| C. | Intron |
| D. | Transposon |
| Answer» E. | |
| 26. |
A mule is obtained by crossing |
| A. | Jack and Jennet |
| B. | Jack and Mare |
| C. | Stallion and mare |
| D. | Stallion and Jennet |
| Answer» C. Stallion and mare | |
| 27. |
Cori cycle occurs in between |
| A. | Liver and kidney |
| B. | Kidney and gonad |
| C. | Liver and muscle |
| D. | Muscle and bone |
| Answer» D. Muscle and bone | |
| 28. |
Which antibiotic inhibits peptide bond formation in prokaryotes |
| A. | Streptomycin |
| B. | Chloramphenicol |
| C. | Tetracycline |
| D. | Neomycin |
| Answer» C. Tetracycline | |
| 29. |
Which group of organisms serves as the best indicator of pollution in a water body |
| A. | Plankton |
| B. | Benthos |
| C. | Nekton |
| D. | Neuston |
| Answer» B. Benthos | |
| 30. |
Genetic drift is a result of |
| A. | Variations |
| B. | Increase in population |
| C. | Mutation |
| D. | Decrease in population |
| Answer» E. | |
| 31. |
The most effective antibiotic against Mycoplasma pneumoniae is |
| A. | Tetracycline |
| B. | Streptomycin |
| C. | Penicillin |
| D. | Nystatin |
| Answer» B. Streptomycin | |
| 32. |
Theory of chemical origin of life was postulated by |
| A. | Miller and Fox |
| B. | Watson and Miller |
| C. | Pasteur |
| D. | Oprain and Haldane |
| Answer» E. | |
| 33. |
The simplest type of amino acid is |
| A. | Alanine |
| B. | Tyrosine |
| C. | Lysine |
| D. | Glycine |
| Answer» E. | |
| 34. |
Allosteric enzymes act as |
| A. | Catalysts |
| B. | Activators |
| C. | Inhibitors |
| D. | Catalysts and regulators |
| Answer» E. | |
| 35. |
Which ecological pyramid can never be inverted |
| A. | Pyramid of number |
| B. | Pyramid of size |
| C. | Pyramid of energy |
| D. | Pyramid of biomass |
| Answer» D. Pyramid of biomass | |
| 36. |
Parthenogenesis occurs in |
| A. | Frog |
| B. | Honeybee |
| C. | Man |
| D. | House gecko |
| Answer» C. Man | |
| 37. |
Caudex type of stem is present in |
| A. | coconut |
| B. | cocoa |
| C. | neem |
| D. | bamboo |
| Answer» B. cocoa | |
| 38. |
RNA molecule that also functions in immune response is |
| A. | Ribozyme |
| B. | Agzymes |
| C. | Abzymes |
| D. | Exozymes |
| Answer» D. Exozymes | |
| 39. |
Which of the following does not develop from tap root system |
| A. | Napiform root |
| B. | Conical root |
| C. | Fusiform root |
| D. | Moniliform root |
| Answer» E. | |
| 40. |
In pomegranate, the fruit is known as |
| A. | balausta |
| B. | pepo |
| C. | amphisarca |
| D. | hesperidium |
| Answer» B. pepo | |
| 41. |
The "eyes" of potato tubers are |
| A. | shoot buds |
| B. | flower buds |
| C. | root buds |
| D. | axillary buds |
| Answer» E. | |
| 42. |
Growth rings are formed by the activity of |
| A. | xylem |
| B. | phloem |
| C. | cambium |
| D. | both phloem and xylem |
| Answer» D. both phloem and xylem | |
| 43. |
The layer of cells between endodermis and vascular bundles is called |
| A. | hypodermis |
| B. | cortex |
| C. | pith |
| D. | pericycle |
| Answer» B. cortex | |
| 44. |
Volvox colonies are found in |
| A. | freshwater ponds |
| B. | salt lakes |
| C. | seawater |
| D. | spring |
| Answer» B. salt lakes | |
| 45. |
Green mould is common name for |
| A. | Neurospora |
| B. | Mucor |
| C. | Penicillium |
| D. | Saccharomyces |
| Answer» D. Saccharomyces | |
| 46. |
Gemma cups are found in |
| A. | Sphagnum |
| B. | Marchantia |
| C. | Riccia |
| D. | Anthoceros |
| Answer» C. Riccia | |
| 47. |
Coralloid roots occur in |
| A. | Cycas |
| B. | Pinus |
| C. | Gnetum |
| D. | Ephedra |
| Answer» B. Pinus | |
| 48. |
The fossil organisms which show characters of two different groups of animals are called |
| A. | transitional forms |
| B. | missing links |
| C. | transitory organisms |
| D. | past links |
| Answer» C. transitory organisms | |
| 49. |
Root pressure is developed in |
| A. | cortex |
| B. | phloem |
| C. | xylem |
| D. | pith |
| Answer» D. pith | |
| 50. |
Rate of transpiration can be measured by |
| A. | Ganong's potometer |
| B. | auxanometer |
| C. | respirometer |
| D. | porometer |
| Answer» B. auxanometer | |