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 number of cephalic appendages in prawn is |
| A. | Four pairs |
| B. | Five pairs |
| C. | Six pairs |
| D. | Eight pairs |
| Answer» C. Six pairs | |
| 2. |
The number of spinal nerves in rat is |
| A. | 15 pairs |
| B. | 22 pairs |
| C. | 33 pairs |
| D. | 37 pairs |
| Answer» D. 37 pairs | |
| 3. |
A rhabditiform larva is found in the life cycle of |
| A. | Hydra |
| B. | Ascaris |
| C. | Tapeworm |
| D. | Liver Fluke |
| Answer» C. Tapeworm | |
| 4. |
The non-biotic pollutant of underground water is |
| A. | Bacteria |
| B. | Algae |
| C. | Arsenic |
| D. | Viruses |
| Answer» D. Viruses | |
| 5. |
Chlorophyll contains |
| A. | Iron |
| B. | Copper |
| C. | Magnesium |
| D. | Manganese |
| Answer» D. Manganese | |
| 6. |
Who had proposed for the first time the double helix model of DNA |
| A. | Watson and Crick |
| B. | Fisher and Haldoni |
| C. | Lamark and Darwin |
| D. | Hugo de Vries |
| Answer» B. Fisher and Haldoni | |
| 7. |
What is the distance of distinct vision (DDV) of a normal human eye |
| A. | 15 cm |
| B. | 25 cm |
| C. | 30 cm |
| D. | 40 cm |
| Answer» C. 30 cm | |
| 8. |
Which of the following organisms fix nitrogen in aquatic ecosystems |
| A. | Fungi |
| B. | Chemoautotrophs |
| C. | Cyanobacteria |
| D. | Phytoplankton |
| Answer» D. Phytoplankton | |
| 9. |
The average blood flow through kidneys per minute is |
| A. | 200 cc |
| B. | 500 cc |
| C. | 800 cc |
| D. | 1200 cc |
| Answer» E. | |
| 10. |
Plants which grow on saline soils are known as |
| A. | Xerophytes |
| B. | Hydrophytes |
| C. | Halophytes |
| D. | Succulents |
| Answer» D. Succulents | |
| 11. |
A plant bud is |
| A. | an embryonic shoot |
| B. | an embryonic leaf |
| C. | an endosperm |
| D. | a seed |
| Answer» B. an embryonic leaf | |
| 12. |
Heparin, the natural anticoagulant, is an example of |
| A. | Structural polysaccharides |
| B. | Conjugated protein |
| C. | Mucopolysaccharides |
| D. | Storage polysaccharides |
| Answer» D. Storage polysaccharides | |
| 13. |
The most numerous, heterogeneous and versatile macromolecules of cells are |
| A. | Proteins |
| B. | Lipids |
| C. | Carbohydrates |
| D. | All of these |
| Answer» B. Lipids | |
| 14. |
How many elements are said to be essential for the growth of crop plants |
| A. | 12 |
| B. | 16 |
| C. | 20 |
| D. | 22 |
| Answer» C. 20 | |
| 15. |
Who discovered the insecticidal properties of DDT |
| A. | Othmanzedicer |
| B. | R.H. Painter |
| C. | Paul Muller |
| D. | Rachel Carson |
| Answer» D. Rachel Carson | |
| 16. |
Which group of animals are exclusively marine |
| A. | Annelids |
| B. | Arthropods |
| C. | Pisces |
| D. | Echinoderms |
| Answer» E. | |
| 17. |
What is meant by "Zoonosis" |
| A. | Animal disease transmitted to man |
| B. | Disease of man transmitted to animal |
| C. | Parasites of man transmitted to animal |
| D. | Viral disease of man transmitted to animal |
| Answer» B. Disease of man transmitted to animal | |
| 18. |
Which of the fungi is commonly called as bread mold |
| A. | Puccinia |
| B. | Rhizopus |
| C. | Ustilago |
| D. | All of these |
| Answer» C. Ustilago | |
| 19. |
The experimental material used by Gregor Mendel is __ |
| A. | Pea plant |
| B. | Drossophila |
| C. | Potato plant |
| D. | None of the above |
| Answer» B. Drossophila | |
| 20. |
Dr. Birbal Sahni; a famous Indian botanist is concerned with __ studies |
| A. | Algal |
| B. | Fossil |
| C. | Bryophytic |
| D. | Fungal |
| Answer» C. Bryophytic | |
| 21. |
The numerous minute pores in the epidermis of a leaf are called |
| A. | Stomata |
| B. | Lenticels |
| C. | Hydathodes |
| D. | Perforation |
| Answer» B. Lenticels | |
| 22. |
The transport of organic substances in plants is through |
| A. | Xylem |
| B. | Phloem |
| C. | Fibers |
| D. | Wood |
| Answer» C. Fibers | |
| 23. |
The deposition of cholesterol on the walls of blood vessels causes the arteries to lose their elasticity and get stiffened is called |
| A. | Hypotension |
| B. | Hypertension |
| C. | Systolic Pressure |
| D. | Arteriosclerosis |
| Answer» E. | |
| 24. |
During blood coagulation, thromboplastin is released by |
| A. | RBC |
| B. | Blood Plasma |
| C. | Leucocytes |
| D. | Clumped Platelets and damaged tissues |
| Answer» E. | |
| 25. |
In which of the following stages of silkworm, silk is secreted |
| A. | Larva |
| B. | Pupa |
| C. | Egg |
| D. | Adult |
| Answer» C. Egg | |
| 26. |
Which one is important in photosynthesis to allows plants to absorb energy from light |
| A. | Xanthophyll |
| B. | Carotene |
| C. | Chlorophyll |
| D. | Phaeophytin |
| Answer» D. Phaeophytin | |
| 27. |
Which among the following is the best method of judging age of a Tree |
| A. | Diameter of tree |
| B. | Diameter of stem |
| C. | Number of branches |
| D. | Annual rings |
| Answer» E. | |
| 28. |
A plant leaf appears to be green because it |
| A. | Absorbs green light |
| B. | Reflects all but yellow and blue light |
| C. | Reflects green light |
| D. | Absorbs red and yellow light |
| Answer» D. Absorbs red and yellow light | |
| 29. |
What does stomach acid mostly consist of |
| A. | Acetic Acid |
| B. | Ascorbic Acid |
| C. | Hydrochloric Acid |
| D. | Sulphuric Acid |
| Answer» D. Sulphuric Acid | |
| 30. |
Which one of the following is a digestive hormone |
| A. | Gastrin |
| B. | Pepsin |
| C. | Amylase |
| D. | Lipase |
| Answer» B. Pepsin | |
| 31. |
The top chambers of human heart are called |
| A. | Aorta |
| B. | Atrium |
| C. | Septum |
| D. | Ventricle |
| Answer» C. Septum | |
| 32. |
What is the pH value range of human blood |
| A. | 7.1-7.15 |
| B. | 7.45-7.55 |
| C. | 7.22-7.28 |
| D. | 7.35-7.45 |
| Answer» E. | |
| 33. |
Entamoeba Histolytica is a |
| A. | Virus |
| B. | Protozoan |
| C. | Fungus |
| D. | Bacteria |
| Answer» C. Fungus | |
| 34. |
The muscle which separate the right side and left side of heart is known as |
| A. | Keratin |
| B. | Maxilla |
| C. | Septum |
| D. | Tubercules |
| Answer» D. Tubercules | |
| 35. |
How many chambers does a Human heart have |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 7 |
| Answer» C. 6 | |
| 36. |
Which one is found in a pair in each Chromosome |
| A. | Genes |
| B. | Nuclei |
| C. | Bases |
| D. | Chromatids |
| Answer» E. | |
| 37. |
Which one is the largest gland of human body |
| A. | Liver |
| B. | Thyroid |
| C. | Pituitary |
| D. | Intestine |
| Answer» B. Thyroid | |
| 38. |
What is the name of the sugar found in milk |
| A. | Glucose |
| B. | Fructose |
| C. | Lactose |
| D. | None of the above |
| Answer» D. None of the above | |
| 39. |
RNA differs from DNA in having |
| A. | Thyamine |
| B. | Adenine |
| C. | Uracil |
| D. | Guanine |
| Answer» D. Guanine | |
| 40. |
Which vitamin is necessary for blood clotting |
| A. | Vitamin A |
| B. | Vitamin C |
| C. | Vitamin K |
| D. | Vitamin D |
| Answer» D. Vitamin D | |
| 41. |
The smallest unit that is capable of carrying out life functions is known as |
| A. | Tissue |
| B. | Cell |
| C. | Blood |
| D. | DNA |
| Answer» C. Blood | |
| 42. |
Who is known as father of modern microbiology |
| A. | Alexander Fleming |
| B. | Dmitri Mendeleev |
| C. | Hugo de Vries |
| D. | Louis Pasteur |
| Answer» E. | |
| 43. |
Who is known as Father of Modern Genetics |
| A. | Charles Darwin |
| B. | Louis Pasteur |
| C. | Gregor Mendel |
| D. | Jean Baptiste Lamarck |
| Answer» D. Jean Baptiste Lamarck | |
| 44. |
In plants, photosynthesis mainly occurs in the |
| A. | Leaves |
| B. | Flowers |
| C. | Root |
| D. | Bark |
| Answer» B. Flowers | |
| 45. |
The oxygen released during photosynthesis process comes from |
| A. | H2O |
| B. | CO2 |
| C. | NO2 |
| D. | Glucose |
| Answer» B. CO2 | |
| 46. |
Where does oxidative phosphorylation take place |
| A. | Chloroplast |
| B. | Mitochondrion |
| C. | Ribosome |
| D. | Lysosome |
| Answer» C. Ribosome | |
| 47. |
The enzyme that joins DNA fragments is |
| A. | Restriction endonuclease |
| B. | Lipase |
| C. | Ligase |
| D. | Peroxidase |
| Answer» D. Peroxidase | |
| 48. |
The Extracellular fluid of blood is |
| A. | RBC |
| B. | WBC |
| C. | Plasma |
| D. | Lymph |
| Answer» D. Lymph | |
| 49. |
The cells responsible for cell-mediated immunity are |
| A. | Lymphocytes |
| B. | T-lymphocytes |
| C. | B-lymphocytes |
| D. | Erythrocytes |
| Answer» C. B-lymphocytes | |
| 50. |
Algae and fungi are collectively known as |
| A. | Thallophytes |
| B. | Pteridophytes |
| C. | Bryophytes |
| D. | Spermatophytes |
| Answer» B. Pteridophytes | |