MCQOPTIONS
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MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 4951. |
What is studied in genetics? |
| A. | the cell |
| B. | study of muscles |
| C. | study of sleep |
| D. | heredity and chromosomes |
| Answer» E. | |
| 4952. |
By whom was the science of heredity called genetics? |
| A. | corns |
| B. | Watson |
| C. | muller |
| D. | mendel |
| Answer» C. muller | |
| 4953. |
Who invented the rabies vaccine? |
| A. | zener |
| B. | Darwin |
| C. | lister |
| D. | Pasteur |
| Answer» E. | |
| 4954. |
Improving the environment of man is called improving the breed? |
| A. | euthenics |
| B. | paleontology |
| C. | eugenics |
| D. | none of these |
| Answer» B. paleontology | |
| 4955. |
The study of cancer related diseases is called? |
| A. | oncology |
| B. | Organology |
| C. | serology |
| D. | neurology |
| Answer» B. Organology | |
| 4956. |
The branch of science that studies human skin is called? |
| A. | Dermatology |
| B. | biochemistry |
| C. | physiology |
| D. | Anatomy |
| Answer» B. biochemistry | |
| 4957. |
The study of the laws of inheritance is called? |
| A. | taxonomy |
| B. | ecology |
| C. | cell Biology |
| D. | genetics |
| Answer» E. | |
| 4958. |
The study of fishes is called? |
| A. | lapidaryology |
| B. | secretology |
| C. | ichthyology |
| D. | none of these |
| Answer» D. none of these | |
| 4959. |
Under which branch of science is the study of bones done? |
| A. | orology |
| B. | Ceremology |
| C. | osteology |
| D. | none of these |
| Answer» D. none of these | |
| 4960. |
The resistance of organisms against infection is studied by? |
| A. | immunology |
| B. | hemology |
| C. | pathology |
| D. | none of these |
| Answer» B. hemology | |
| 4961. |
What is the study of antibodies and antigens in blood called? |
| A. | Biology |
| B. | histology |
| C. | gynecology |
| D. | serology |
| Answer» E. | |
| 4962. |
Man-made environmental pollution is called? |
| A. | pain reliever |
| B. | Antibiotics |
| C. | parabiotic |
| D. | none of these |
| Answer» D. none of these | |
| 4963. |
Which form of energy does not cause pollution problems? |
| A. | Coal |
| B. | petrol |
| C. | nuclear |
| D. | solar |
| Answer» E. | |
| 4964. |
Which of the following agricultural work is environmentally sound? |
| A. | organic agriculture |
| B. | production of varieties |
| C. | shift farming |
| D. | none of these |
| Answer» B. production of varieties | |
| 4965. |
Which is the most sustainable ecosystem? |
| A. | Forest |
| B. | field of grass |
| C. | desert |
| D. | Sea |
| Answer» E. | |
| 4966. |
Could it be a result of global warming? |
| A. | sea level rise |
| B. | change in coast line |
| C. | change in crop |
| D. | none of these |
| Answer» C. change in crop | |
| 4967. |
Which of the following is the cause of maximum noise pollution? |
| A. | jet flight |
| B. | pop music |
| C. | Election meetings |
| D. | none of these |
| Answer» B. pop music | |
| 4968. |
The ozone layer present in the atmosphere absorbs? |
| A. | over the arctic ocean |
| B. | over alaska |
| C. | over antarctica |
| D. | none of these |
| Answer» D. none of these | |
| 4969. |
Who propounded the concept of ecological niche? |
| A. | C. C. Park |
| B. | the greenells |
| C. | by Darwin |
| D. | none of these |
| Answer» C. by Darwin | |
| 4970. |
Who is the biggest fixer of solar energy? |
| A. | fungus |
| B. | Green plants |
| C. | protozoa |
| D. | bacteria |
| Answer» C. protozoa | |
| 4971. |
Epiphytes are highly developed plants that depend on other plants. |
| A. | for food |
| B. | for water |
| C. | for shade |
| D. | for mechanical help |
| Answer» E. | |
| 4972. |
Plants that grow in the desert are called? |
| A. | hydrophytes |
| B. | Xerophytes |
| C. | epiphytes |
| D. | mesophytes |
| Answer» C. epiphytes | |
| 4973. |
How many pairs of nerves emerge from the spinal cord in humans? |
| A. | 12 |
| B. | 13 |
| C. | 31 |
| D. | 35 |
| Answer» D. 35 | |
| 4974. |
Which one of the following plants is dioecious? |
| A. | Amarbel |
| B. | Azadirachta indica |
| C. | Will do |
| D. | Mustard |
| Answer» D. Mustard | |
| 4975. |
Which tree is suitable for preventing dust pollution? |
| A. | Sita Ashok |
| B. | Azadirachta indica |
| C. | Poplar |
| D. | Mahua |
| Answer» C. Poplar | |
| 4976. |
The world's largest ecosystem is? |
| A. | grassland |
| B. | sea |
| C. | Forest |
| D. | none of these |
| Answer» C. Forest | |
| 4977. |
What is an example of a non-living component of the environment? |
| A. | vegetation |
| B. | Beast |
| C. | Wind |
| D. | All |
| Answer» D. All | |
| 4978. |
What is hydrophyte? |
| A. | to an aquatic plant |
| B. | Of a collective animal |
| C. | a plant disease |
| D. | none of these |
| Answer» B. Of a collective animal | |
| 4979. |
Where is the control center of reflex actions? |
| A. | in the cerebellum |
| B. | in the vertebral cord |
| C. | in nerve cells |
| D. | in the brain |
| Answer» C. in nerve cells | |
| 4980. |
What is the total number of muscles in the human body? |
| A. | 600 |
| B. | 630 |
| C. | 639 |
| D. | 653 |
| Answer» D. 653 | |
| 4981. |
If the radius of a person's blood vessels is reduced, then his blood pressure? |
| A. | will grow |
| B. | will decrease |
| C. | will remain the same |
| D. | will increase in men and decrease in women |
| Answer» B. will decrease | |
| 4982. |
What percentage of the total body mass is the volume of blood? |
| A. | 8 % |
| B. | 7 % |
| C. | 11 % |
| D. | 13 % |
| Answer» C. 11 % | |
| 4983. |
Which hormone does the uterus produce for the implantation of a fertilized egg? |
| A. | oxytocin |
| B. | Prolactin |
| C. | estrogen |
| D. | none of these |
| Answer» D. none of these | |
| 4984. |
Removal of land by the action of wind and water is called? |
| A. | erosion |
| B. | Lavan Bhavan |
| C. | calcification |
| D. | fossil building |
| Answer» B. Lavan Bhavan | |
| 4985. |
In which of the following human hormones iodine is mixed? |
| A. | oxytocin |
| B. | thyroxine |
| C. | progesterone |
| D. | none of these |
| Answer» C. progesterone | |
| 4986. |
Which element plays a major role in clotting of blood? |
| A. | MG |
| B. | That |
| C. | Fe |
| D. | With |
| Answer» C. Fe | |
| 4987. |
Iodine containing hormone? |
| A. | Adrenaline |
| B. | insulin |
| C. | thyroxine |
| D. | none of these |
| Answer» D. none of these | |
| 4988. |
What is the blood purifier? |
| A. | kidney |
| B. | lung |
| C. | heart |
| D. | liver |
| Answer» B. lung | |
| 4989. |
Which one of the following organisms has the maximum number of ribs at 24? |
| A. | but |
| B. | human |
| C. | fish |
| D. | snake |
| Answer» C. fish | |
| 4990. |
In the human body the tail is attached to which structure? |
| A. | small intestine |
| B. | Colon |
| C. | stomach |
| D. | gall bladder |
| Answer» C. stomach | |
| 4991. |
What is the number of orbits in the human heart? |
| A. | four |
| B. | Five |
| C. | three |
| D. | two |
| Answer» B. Five | |
| 4992. |
Which blood class does the omnivore belong to? |
| A. | A |
| B. | B |
| C. | FROM |
| D. | O |
| Answer» D. O | |
| 4993. |
How many valves are there in human heart? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 4994. |
What is the average heart rate in a normal person? |
| A. | 82 |
| B. | 92 |
| C. | 72 |
| D. | 90 |
| Answer» D. 90 | |
| 4995. |
EEG is used to record whose activity? |
| A. | lung |
| B. | heart |
| C. | Brain |
| D. | none of these |
| Answer» D. none of these | |
| 4996. |
The pigment that gives color to human skin is? |
| A. | Rhodopsin |
| B. | Melanin |
| C. | anthrocyanin |
| D. | idopsin |
| Answer» C. anthrocyanin | |
| 4997. |
What constitutes the majority of the total weight of an animal's body? |
| A. | blood |
| B. | tissue |
| C. | bone |
| D. | water |
| Answer» E. | |
| 4998. |
What is the normal human body temperature? |
| A. | 120/80 |
| B. | 100/90 |
| C. | 80/110 |
| D. | none of these |
| Answer» B. 100/90 | |
| 4999. |
Which group is the universal donor in human blood? |
| A. | A |
| B. | B |
| C. | FROM |
| D. | O |
| Answer» E. | |
| 5000. |
Approximately how many grams is the human brain? |
| A. | 1350 |
| B. | 1230 |
| C. | 1100 |
| D. | 1500 |
| Answer» B. 1230 | |