1.
Ultrasound of how much frequency is beamed into human body for sonography ?
A.
$$15 - 3\, MHZ$$
B.
$$1 - 15 \,MHZ$$
C.
$$45 - 70\, MHZ$$
D.
$$30 - 45\, MHZ$$
Answer :
$$1 - 15 \,MHZ$$
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2.
Cry endotoxins obtained from Bacillus thuringiensis are effective against
A.
mosquitoes
B.
flies
C.
nematodes
D.
boll worms
Answer :
boll worms
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3.
Genetic engineering has been successfully used for producing:
A.
transgenic mice for testing safety of polio vaccine before use in humans
B.
transgenic models for studying new treatments for certain cardiac diseases
C.
transgenic cow - rosie which produces high fat milk for making ghee
D.
animals like bulls for farm work as they have super power
Answer :
transgenic mice for testing safety of polio vaccine before use in humans
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4.
A free living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water form Azolla is
A.
Anabaena
B.
Tolypothrix
C.
Chlorella
D.
Nostoc
Answer :
Anabaena
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5.
Some of the characteristics of Bt cotton are:
A.
long fibre and resistance to aphids
B.
medium yield, long fibre and resistance to beetle pests
C.
high yield and production of toxic protein crystals which kill dipteran pests
D.
high yield and resistance to bollworms
Answer :
high yield and resistance to bollworms
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6.
Mechanism of action of antibiotics are
A.
Disruption of cell wall
B.
Inhibition of DNA/RNA synthesis
C.
Disruption of plama lemma
D.
All of the above
Answer :
All of the above
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7.
Use of bioresources by multinational companies and organisations without authorisation from the concerned country and its people is called
A.
Bio-infringement
B.
Biopiracy
C.
Bioexploitation
D.
Biodegradation
Answer :
Biopiracy
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8.
Rate limiting step inbiogas production is
A.
Methane
B.
Cellulose
C.
Starch
D.
Acetic acid
Answer :
Cellulose
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9.
Biogas is produced by anaerobic breakdown of biomass of agricultural waste by methanogenic bacteria. It is a
A.
One step process
B.
Two step process
C.
Three step process
D.
Multistepprocess
Answer :
Three step process
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10.
Propionic-bacteria is an important source of
A.
Vitamin-C
B.
Cobalamin
C.
Sugars
D.
Proteins
Answer :
Cobalamin
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