MCQOPTIONS
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MCQOPTIONS
This section includes 79 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In ecosystem ,Pupa survives through |
| A. | feeding through the water |
| B. | feeding through the proboscis |
| C. | the food accumulated in the larva stage |
| D. | caudal flaps |
| Answer» D. caudal flaps | |
| 2. |
Larvae changes into pupa in |
| A. | 2 days |
| B. | 4 days |
| C. | 6 days |
| D. | 1 week |
| Answer» E. | |
| 3. |
Nasal cavities and Eustachian tubes open in |
| A. | Larynx |
| B. | Pharynx |
| C. | Trachea |
| D. | Glottis |
| Answer» C. Trachea | |
| 4. |
From the mouth the food enters into the |
| A. | tubular gut |
| B. | buccal cavity |
| C. | alimentary gut |
| D. | trachea |
| Answer» C. alimentary gut | |
| 5. |
In digestive system of humans epiglottis is a |
| A. | flap like bone |
| B. | flap like cartilage |
| C. | part of voice box |
| D. | part of windpipe |
| Answer» C. part of voice box | |
| 6. |
Type of hepatitis which is transferred by contact with faces of patient is |
| A. | hepatitis A |
| B. | hepatitis B |
| C. | hepatitis C |
| D. | hepatitis E |
| Answer» B. hepatitis B | |
| 7. |
Viruses are extremely small infectious agents which range in size from 250nm to |
| A. | 10nm |
| B. | 12nm |
| C. | 50nm |
| D. | 20nm |
| Answer» E. | |
| 8. |
If viral DNA is detached from host's chromosome, it leads to beginning of lytic cycle called |
| A. | invasion |
| B. | development |
| C. | induction |
| D. | convection |
| Answer» D. convection | |
| 9. |
A disease which inflames liver of human beings is |
| A. | hepatitis |
| B. | measles |
| C. | influenza |
| D. | AIDS |
| Answer» B. measles | |
| 10. |
Virology deals with study of |
| A. | bacteria |
| B. | virus |
| C. | amoeba |
| D. | euglena |
| Answer» C. amoeba | |
| 11. |
HIV target major cells in human body known as |
| A. | C-lymphocytes |
| B. | D-lymphocytes |
| C. | E-lymphocytes |
| D. | T-lymphocytes |
| Answer» E. | |
| 12. |
Numerous micro-organisms which may be infectious proteins are the |
| A. | clones |
| B. | virions |
| C. | bacteriophage |
| D. | prions |
| Answer» E. | |
| 13. |
Shape of head of a bacteriophage is |
| A. | spiral |
| B. | elongated |
| C. | pyramidal |
| D. | elongated pyramidal |
| Answer» E. | |
| 14. |
Disease in which fluid filled vesicles are formed on body which takes shape of pustules and leave pitted scars is |
| A. | measles |
| B. | small pox |
| C. | mumps |
| D. | all of the above |
| Answer» C. mumps | |
| 15. |
A virus which is passed on to progeny cells after being incorporated in host genome is called |
| A. | retrovirus |
| B. | provirus |
| C. | bacteriophage |
| D. | capsid |
| Answer» C. bacteriophage | |
| 16. |
Enzyme which dissolves wall of a bacteria is |
| A. | lactase |
| B. | lysozyme |
| C. | sucrase |
| D. | fructase |
| Answer» C. sucrase | |
| 17. |
When HIV invades in an individual, it destroys its |
| A. | nervous system |
| B. | digestive system |
| C. | circulatory system |
| D. | immune system |
| Answer» E. | |
| 18. |
Phage in which lysis of host cell takes place is |
| A. | prophage |
| B. | lytic phage |
| C. | virulent phage |
| D. | metaphage |
| Answer» D. metaphage | |
| 19. |
Phage tail structure of a bacteriophage is more complex than its |
| A. | body |
| B. | tail |
| C. | head |
| D. | tentacles |
| Answer» D. tentacles | |
| 20. |
Zea mays (corn) belongs to phylum |
| A. | tracheophyta |
| B. | monera |
| C. | protozoa |
| D. | protista |
| Answer» B. monera | |
| 21. |
Quality of storing food using simple inorganic material belongs to plants which are |
| A. | heterptrophs |
| B. | autotrophs |
| C. | Both a and b |
| D. | hypotrophs |
| Answer» C. Both a and b | |
| 22. |
Mad cow infection and mysterious brain infections are being reported assuming responsible is a |
| A. | virions |
| B. | viruses |
| C. | bacteria |
| D. | prions |
| Answer» E. | |
| 23. |
AIDS was first reported for first time in early 1980s, in group of young |
| A. | females |
| B. | males |
| C. | horses |
| D. | monkeys |
| Answer» C. horses | |
| 24. |
HIV multiplies but don?t cause disease in every individual because it is |
| A. | weak |
| B. | small |
| C. | host specific |
| D. | target humans |
| Answer» D. target humans | |
| 25. |
Unit of classification is a |
| A. | genre |
| B. | specie |
| C. | cell |
| D. | kingdom |
| Answer» C. cell | |
| 26. |
There are five kingdoms according to Lynn and Karolene which are Prokaryotes, Protoctista, Fungi, Animalia and |
| A. | eukaryotes |
| B. | plantae |
| C. | protista |
| D. | vertebrates |
| Answer» C. protista | |
| 27. |
Disease that is always present to some extent is called |
| A. | endemic |
| B. | epidemic |
| C. | exodemic |
| D. | ectodermic |
| Answer» C. exodemic | |
| 28. |
Reduced immunity in white blood cells tend to more |
| A. | viral attacks |
| B. | coronary risks |
| C. | blood clots |
| D. | bacterial attacks |
| Answer» B. coronary risks | |
| 29. |
Virus which spreads with intimate physical contact, contaminated syringes and breast feeding is known as |
| A. | HIV |
| B. | HBV |
| C. | HCV |
| D. | HAV |
| Answer» B. HBV | |
| 30. |
A complete, mature and infectious particle of virus is called as |
| A. | venom |
| B. | virion |
| C. | head |
| D. | tail |
| Answer» C. head | |
| 31. |
Bacteriophages are of two structural forms either cubical symmetry or |
| A. | spiral |
| B. | zigzag |
| C. | helical |
| D. | stranded |
| Answer» D. stranded | |
| 32. |
For very first time vaccination against HIV was synthesized and was administered in humans in |
| A. | 2010 |
| B. | 2008 |
| C. | 2001 |
| D. | 1998 |
| Answer» D. 1998 | |
| 33. |
Synthesis and maturation of phage along with release of new phages constitutes cycle called |
| A. | lysis cycle |
| B. | life cycle |
| C. | lytic cycle |
| D. | liptical cycle |
| Answer» D. liptical cycle | |
| 34. |
Mucus is made through |
| A. | fats |
| B. | lipids |
| C. | carbohydrates |
| D. | amino acids |
| Answer» D. amino acids | |
| 35. |
Pupa swims in water through |
| A. | caudal flaps |
| B. | wriggles in water |
| C. | air floats |
| D. | ripples and waves |
| Answer» B. wriggles in water | |
| 36. |
During breathing larynx is |
| A. | lowered, glottis is open |
| B. | lowered and the windpipe is opened |
| C. | raised and epiglottis blocks glottis |
| D. | raised and pharynx is shut |
| Answer» B. lowered and the windpipe is opened | |
| 37. |
In digestive system, Windpipe is referred to |
| A. | larynx |
| B. | trachea |
| C. | glottis |
| D. | epiglottis |
| Answer» C. glottis | |
| 38. |
Malaria is caused by the parasitic protozoan known as |
| A. | Anopheles |
| B. | Plasmodium |
| C. | Plasmolysis |
| D. | Anophelysis |
| Answer» C. Plasmolysis | |
| 39. |
Polio virus is found all over world causing serious disease |
| A. | paralysis |
| B. | brain hemorrhage |
| C. | mental retarded |
| D. | poliomyelitis |
| Answer» E. | |
| 40. |
Hookworms live inside the intestines and |
| A. | help in milk formation in mammals |
| B. | help in digestion of cellulose |
| C. | suck blood |
| D. | consume feces |
| Answer» D. consume feces | |
| 41. |
Larvae breath through the help of |
| A. | feeding brushes |
| B. | pair of air floats |
| C. | pair of spiracles |
| D. | pair of gills |
| Answer» D. pair of gills | |
| 42. |
Viruses which are responsible for tumors in animals and plants are |
| A. | Congo virus |
| B. | HIV |
| C. | retroviruses |
| D. | HBV |
| Answer» D. HBV | |
| 43. |
Shape of a polio virus is |
| A. | cylindrical |
| B. | spherical |
| C. | round |
| D. | oval |
| Answer» C. round | |
| 44. |
If the malaria is not treated, outcomes could include |
| A. | death only |
| B. | anemia only |
| C. | heart failure |
| D. | death and anemia |
| Answer» E. | |
| 45. |
Process in which infections becomes incorporated into bacterial chromosome instead of taking control of host's machinery is termed as |
| A. | progeny |
| B. | lysogeny |
| C. | isogeny |
| D. | metageny |
| Answer» C. isogeny | |
| 46. |
Secretion produced by salivary gland is poured into |
| A. | buccal cavity |
| B. | alimentary gut |
| C. | trachea |
| D. | tubular gut |
| Answer» B. alimentary gut | |
| 47. |
Vector transfers the malarial parasite from |
| A. | a healthy person to an infected person |
| B. | an infected person to a mosquitoes |
| C. | an infected person to a healthy person |
| D. | a healthy person to a mosquito |
| Answer» D. a healthy person to a mosquito | |
| 48. |
Situated above larynx and behind the root of tongue is |
| A. | epiglottis |
| B. | glottis |
| C. | incisors |
| D. | salivary gland |
| Answer» B. glottis | |
| 49. |
Mosquito eggs hatch out in the larvae in |
| A. | 2 days |
| B. | 4 days |
| C. | 6 days |
| D. | 1 week |
| Answer» B. 4 days | |
| 50. |
Plasmodium resides in the mosquitos in |
| A. | proboscis |
| B. | liver |
| C. | stomach |
| D. | lungs |
| Answer» D. lungs | |