Top 100 Biology GK Questions
The nitrogen-fixing bacteria found in the nodules present in the roots of leguminous plants are?
(A) mortal
(B) symbiotic
(C) protophagy
(D) none of these
Correct Answer : B
By genetic manipulation, which bacterial strain of bacteria grown from natural isolates can be used to treat spilled oil in the ocean?
(A) Clostridium
(B) Agrobacterium
(C) Nitrosomonas
(D) Pseudomonas
Correct Answer : D
Does refrigeration help in food preservation?
(A) killing bacteria
(B) reducing the rate of biochemical reactions
(C) destroying enzyme action
(D) by covering the food item with a layer of ice
Correct Answer : B
Who is the founder of Homeopathy?
(A) Laneck
(B) Domac
(C) Waxman
(D) Heinemann
Correct Answer : D
What is the bacterial decomposition of organic matter in anaerobic conditions called?
(A) Fertilization
(B) Composting
(C) Fermentation
(D) contamination
Correct Answer : C
Which disease is caused by the deficiency of Vitamin-A?
(A) Scurvy
(B) Nightblindness
(C) Rickets
(D) Beri-Beri
Correct Answer : B
Which of the following enzymes is present in saliva?
(A) Pepsin
(B) Trypsin
(C) Lactase
(D) Ptyalin
Correct Answer : D
The normal temperature of the human body is:
(A) 300 K
(B) 310 K
(C) 280 K
(D) 290 K
Correct Answer : B
Commonly heat of the human body in Fahrenheit –
(A) 98
(B) 98.6
(C) 97
(D) 97.5
Correct Answer : B
Cytology is:
(A) Study of cells
(B) Study of demography
(C) Study of bacteria
(D) Study of crops
Correct Answer : A
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Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
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