set 1 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 2 EXERCISES
The following question based on biology in human welfare topic of general science mcq
(a) Griseofulvin
(b) Streptomycin
(c) Citric acid
(d) Cephalosporin
The correct answers to the above question in:
Answer: (c)
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Read more biology in human welfare Based General Science Questions and Answers
Question : 1
The technology of biogas production was developed in India mainly due to the efforts of
a) Indian Council of Medical Research (ICMR)
b) Indian Agricultural/ Research Institute (IARI) and Khadi and Village Industries Commission (KVIC)
c) National Botanical Research Institute (NBR1)
d) Indian Council of Agricultural Research (ICAR)
Answer »Answer: (b)
Question : 2
The animal husbandry deals with the care, breeding and management of
a) Honey bees and silk worms
b) Domesticated animals
c) Fishes
d) All of these
Answer »Answer: (d)
Question : 3
BOD refers to
a) Biochemical Operation Demand
b) Bacteria Oxygen Demand
c) Biochemical Oxygen Demand
d) Biological Organism Demand
Answer »Answer: (c)
Question : 4
Organic farming is the technique of raising crops through use of
a) Biofertilisers
b) Manures
c) Resistant varieties
d) All of these
Answer »Answer: (d)
Question : 5
Three crops that contribute maximum to global food grain production are
a) Wheat, maize and sorghum
b) Wheat, rice and maize
c) Wheat, rice and barley
d) Rice, maize and sorghum
Answer »Answer: (b)
Three crops that contribute maximum to global food grain production are wheat, rice and maize, which belong to the family Poaceae (Graminae).
Question : 6
Two microbes found to be very useful in genetic engineering are
a) Crown gall bacterium and Caenorhabditis elegans
b) Vibrio cholerae and a tailed bacteriophage
c) Diplococcus sp. and Pseudomonas sp.
d) Escherichia coli and Agrobacterium tumefaciens
Answer »Answer: (d)
Escherichia coli is a bacterium found in the human colon. On this bacterium, scientists have made extensive genetic experiments to make some vital chemicals like insulin.
Another bacterium is Agrobacterium tumefaciens which causes crown gall in plants. It is extensively used for genetic experiments.
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