131.
Apex of radicle is formed with help of
A
Epibasal cells
B
Hypobasal cells
C
Cotyledon
D
Hypophysis
Answer :
Hypophysis
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132.
Double fertilization and triple fusion were discovered by
A
Hofmeister
B
Nawaschin and Guignard
C
Leeuwenhoek
D
Strasburger
Answer :
Nawaschin and Guignard
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133.
Bisexual flowers which never open, demonstrated by
A
Autogamy
B
Allogamy
C
Cleistogamy
D
None of the above
Answer :
Cleistogamy
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134.
Main function of endosperm (in anther) is
A
Mechanical
B
Nutritive
C
Dehiscence
D
None of the above
Answer :
Dehiscence
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135.
Generative cell was destroyed by laser but a normal pollen tube was still formed because
A
vegetative cell is not damaged
B
contents of killed generative cell stimulate pollen growth
C
laser beam stimulates growth of pollen tube
D
the region of emergence of pollen tube is not harmed
Answer :
vegetative cell is not damaged
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136.
Which structure of the ovule remains unchanged in the end
A
Embryosac
B
Integuments
C
Funiculum
D
Micropyle
Answer :
Micropyle
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137.
Which one of the following statements is wrong?
A
When pollen is shed at two-celled stage, double fertilization does not take place
B
Vegetative cell is larger than generative cell
C
Pollen grains in some plants remain viable for months
D
Intine is made up of cellulose and - pectin
Answer :
When pollen is shed at two-celled stage, double fertilization does not take place
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138.
Fore most Indian Embryologist was
A
S.C. Maheshwari
B
P. Maheshwari
C
H.Y. Mohan Ram
D
None of the above
Answer :
P. Maheshwari
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139.
Isobilateral tetrad is common in
A
Monocots
B
Dicots
C
Halophia
D
None of the above
Answer :
Monocots
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140.
Water of coconut is
A
Endosperm
B
Nucellus
C
Endocarp
D
Mesocarp
Answer :
Endosperm
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