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Question-1
Which of the following functions in induction of cell division?
(A)
Auxins
(B)
Kinetic
(C)
Cytokinin
(D)
Gibberellin
Question-2
Which of the following is used for fruit ripening on commercial scale?
(A)
Ethylene
(B)
IAA
(C)
2, 4-T
(D)
2, 4, 5-T
Question-3
A sleep movement in plant is a nastic response, that occurs daily in response to
(A)
Dark
(B)
Light
(C)
Water
(D)
Both a and b
Question-4
The arrangement of leaves on the stem is called
(A)
Prefoliation
(B)
Phyllotaxy
(C)
Leaf base
(D)
Stipules
Question-5
Which of the following induces flowering in long day plants?
(A)
Gibberellins
(B)
Cytokinin
(C)
Auxins
(D)
Ethylene
Question-6
Which of the following breaks the dormancy of potato tubers?
(A)
IAA
(B)
ABA
(C)
Zeatin
(D)
Gibberellin
Question-7
Which of the following is a growth-hormone, produced by a fungus?
(A)
Auxin
(B)
Gibberellin
(C)
Auromycin
(D)
None of these
Question-8
Seedless water-melons are obtained by
(A)
Haploidy
(B)
Triploidy
(C)
Gibberellin application
(D)
Vegetative propagation
Question-9
The crescograph was invented by
(A)
Darwin
(B)
J.C. Bose
(C)
F.W. Went
(D)
C.V. Raman
Question-10
Parthenocarpic development of fruit is brought about by
(A)
2, 4-D
(B)
2,4,5-T
(C)
NAA, 2-T
(D)
NAA, 2, 4-D
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Plus 2 Biology Science
ICSE/ISC
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