1. “Rinderpest” disease, which was recently eliminated was caused by which among the following?
[A] Bacteria
[B] Virus
[C] Fungi
[D] Nematode
Show Answer
Correct Answer: B [Virus]
Notes:
Rinderpest which is also called as cattle plague or steppe murrain was an infectious viral disease of cattle, domestic buffalo, and many other species of even-toed ungulates, including buffaloes. It was recently eliminated.
2. Which of the following is a micronutrient that helps in nitrogen metabolism of plants?
[A] Zinc
[B] Copper
[C] Molybdenum
[D] Sulphur
Show Answer
Correct Answer: C [Molybdenum]
Notes:
Nitrogen metabolism is not only one of the basic processes of plant physiology, but also one of the important parts of global chemical cycle. The molybdenum nitrogenase is responsible for most biological nitrogen fixation.
3. The pitcher plant is characterized by which of the following plants ?
[A] Autotrophes
[B] Insectivorous
[C] Allergen
[D] None of the above
Show Answer
Correct Answer: B [Insectivorous]
Notes:
The pitcher plant is characterized as insectivorous. Pitcher plants are several different carnivorous plants. They have modified leaves known as pitfall traps which is a prey-trapping mechanism featuring a deep cavity filled with digestive liquid.
4. What is the correct name of premature death of cells and living tissue?
[A] Neutrophilia
[B] Necrosis
[C] Neoplasia
[D] Nephrosis
Show Answer
Correct Answer: B [Necrosis]
Notes:
Necrosis is the name of premature death of cells and living tissue. It refers to the death of most or all of the cells in an organ or tissue due to disease, injury, or failure of the blood supply.
5. Due to which of the processes in plants the Radiocarbon dating is possible to estimate their age?
[A] Growth
[B] Chemosynthesis
[C] Photosynthesis
[D] Assimilation
Show Answer
Correct Answer: C [Photosynthesis]
Notes:
Due to photosynthesis in plants the Radiocarbon dating is possible to estimate their age. Radiocarbon is a method for determining the age of an object which contains organic material by using the properties of radiocarbon, a radioactive isotope of carbon.
6. As per the WHO definition, within how many days of the termination of pregnancy, the death of a woman is counted in the Maternal Mortality?
[A] 36 Days
[B] 42 Days
[C] 56 Days
[D] 60 Days
Show Answer
Correct Answer: B [42 Days]
Notes:
As per the WHO definition, within 42 days of the termination of pregnancy, the death of a woman is counted in the Maternal Mortality, irrespective of the duration and site of the pregnancy.
7. Which of the following tests is used for the diagnosis of ‘Colour-Blindness’ in people ?
[A] Ishihara Test
[B] Widal Test
[C] ELISA test
[D] Rorschach test
Show Answer
Correct Answer: A [Ishihara Test]
Notes:
Ishihara Test is used for the diagnosis of ‘Colour-Blindness’ in people. The test contains a number of colored plates, called Ishihara plates. Each of these plates contain a circle of dots appearing randomized in color and size.
8. The radiations used in Radiotherapy for the treatment of Cancer destroys the Cancer tumour mainly by which among the following?
[A] Destroying the Cytoplasm of the Cancerous Cells
[B] Destroying the Cell membranes of the Cancerous Cells
[C] Destroying the DNA of the Cancerous Cells
[D] Destroying the spindle fibres which are used in Cell Division
Show Answer
Correct Answer: C [ Destroying the DNA of the Cancerous Cells]
Notes:
The radiations used in Radiotherapy for the treatment of Cancer destroys the Cancer tumour mainly by Destroying the DNA of the Cancerous Cells. It uses high doses of radiation to kill cancer cells and shrink tumors.
9. Which is not a parasite? (UPSC Prelims 1984)
[A] Tick
[B] Housefly
[C] Bed bug
[D] Louse
Show Answer
Correct Answer: B [Housefly]
Notes:
Tick, beg bug and louse are parasitic insects that live on the skin of mammals or birds.
Housefly is not a parasite.
10. Which of the following represent Dinosaurs? (UPSC Prelims 1989)
[A] A reptile
[B] An amphibian
[C] A mammal
[D] A bird
Show Answer
Correct Answer: A [A reptile]
Notes:
Dinosaurs were warm-blooded reptiles. Mammal bone study sheds light on dinosaur physiology.
