351.
Mutagenic effects of X-rays were discovered by
A
T.H. Morgan
B
H.J. Mullar
C
G.W. Beadle
D
Hugo de Vries
Answer :
H.J. Mullar
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352.
Which one is the richest source of vegetarian protein
A
Gram
B
Soyabean
C
Wheat
D
Rice
Answer :
Soyabean
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353.
Silk is a product of
A
Cuticle of larva
B
Cuticle of adult
C
Salivary gland of larva
D
Salivary gland of adult
Answer :
Salivary gland of larva
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354.
One of the major difficulties in the biological control of insect pests is the
A
practical difficulty of introducing the predator to specific areas
B
method is less effective as compared with the use of insecticides
C
predator does not always survive when transferred to a new environment
D
the predator develops a preference to other diets and may itself become a pest
Answer :
the predator develops a preference to other diets and may itself become a pest
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355.
Richest Source of protein amongst the following is
A
Wheat
B
Maize
C
Legumes
D
Rice
Answer :
Legumes
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356.
Which of the following is the cyanobacterial group acting as biofertiliser
A
Bacillus
B
Anabaena
C
Rhizobium
D
Azotobacter
Answer :
Anabaena
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357.
Which pesticide is lipophilic
A
Trizines
B
Pyrethoids
C
Organophosphatc
D
Organo chlorine
Answer :
Organo chlorine
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358.
Induced breeding (Hypophysation ) is carried out in case of
A
Pisciculture
B
Apiculture
C
Sericulture
D
Lac culture
Answer :
Pisciculture
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359.
Cellular totipotency was demonstrated by
A
Theodore Schwann
B
A.V. Leeuwenhoek
C
F.C. Steward
D
Robert Hooke
Answer :
F.C. Steward
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360.
Wood used for making cricket bats is got from
A
Tectona grandis
B
Salix alba
C
Morus nigra
D
Cedrus deodara
Answer :
Salix alba
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