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
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
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
Who is the founder of Homeopathy?
(A) Laneck
(B) Domac
(C) Waxman
(D) Heinemann
What is the bacterial decomposition of organic matter in anaerobic conditions called?
(A) Fertilization
(B) Composting
(C) Fermentation
(D) contamination
Which disease is caused by the deficiency of Vitamin-A?
(A) Scurvy
(B) Nightblindness
(C) Rickets
(D) Beri-Beri
Which of the following enzymes is present in saliva?
(A) Pepsin
(B) Trypsin
(C) Lactase
(D) Ptyalin
The normal temperature of the human body is:
(A) 300 K
(B) 310 K
(C) 280 K
(D) 290 K
Commonly heat of the human body in Fahrenheit –
(A) 98
(B) 98.6
(C) 97
(D) 97.5
Cytology is:
(A) Study of cells
(B) Study of demography
(C) Study of bacteria
(D) Study of crops
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