51.
Maize is best example of
A
Anemophilous
B
Ornithophilous
C
Entomophilous
D
Hydrophilous
Answer :
Anemophilous
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52.
Aleurone grains are rich in
A
Fat
B
Protein
C
Carbhydrates
D
Auxins
Answer :
Protein
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53.
Parthenogenesis is
A
development of embryo without fertilization
B
development of fruit without fertilization
C
development of fruit without hormones
D
development of embryo from egg without fertilization
Answer :
development of embryo from egg without fertilization
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54.
Which of the following is monocarpic plant
A
Shisham
B
Mango
C
Pinus
D
Bamboo
Answer :
Bamboo
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55.
Which light is more effective in inducing germination of seeds
A
Red
B
Blue
C
Green
D
Infra re
Answer :
Red
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56.
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids
A
16
B
24
C
32
D
8
Answer :
24
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57.
The viability of seed can be ascertained with the help of
A
IAA
B
A.B.A.
C
T.T.C.
D
N.A.D.P
Answer :
T.T.C.
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58.
Function of filiform apparatus is to:
A
Recognize the suitable pollen at stigma
B
Stimulate division of generative cell
C
Produce nectar
D
Guide the entry of pollen tube
Answer :
Guide the entry of pollen tube
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59.
Megasporophyll is called
A
Gynoecium
B
Carpel
C
Ovary
D
Stigma
Answer :
Carpel
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60.
An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is :
A
Cuticle
B
Sporopollenin
C
Lignin
D
Cellulose
Answer :
Sporopollenin
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