71.
Example of Epihydrophily is
A
Zostera
B
Vallisneria
C
Ceratophyllum
D
Nymphea
Answer :
Vallisneria
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72.
Occurrence of more than four spores from Spore mother cells is called
A
Polysiphony
B
Polyspermy
C
Polyspory
D
Poly embryony
Answer :
Polyspory
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73.
Seed coat is not thin, membranous in :
A
Coconut
B
Groundnut
C
Gram
D
Maize
Answer :
Coconut
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74.
Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called
A
Xenogamy
B
Geitonogamy
C
Karyogamy
D
Autogamy
Answer :
Geitonogamy
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75.
Anther of Arceuthobium plants is
A
Tetra sporangiate
B
Bisporangiate
C
Monosporangiate
D
A and B both
Answer :
Monosporangiate
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76.
In Capsella the pollen tube enters through the micropyle, therefore fertilization is
A
Porogamous
B
Chalazogamous
C
Mesogamous
D
Basigamous
Answer :
Porogamous
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77.
Embryosac represents
A
Macrogamete
B
Macrospore
C
Macrosprophyll
D
Macrogametophyte
Answer :
Macrogametophyte
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78.
The plant which raised from pollen grain is called
A
Haploid pl
B
Diploid plant
C
Polyploid
D
Heterosis
Answer :
Haploid pl
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79.
Apogamy is
A
Reproduction of virus
B
Failure of fusion of gametes
C
Development of bacteria
D
All of the above
Answer :
Failure of fusion of gametes
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80.
Which of the following is not true for double fertilization
A
Discovered
B
Diploid
C
Male gamete and secondary nucleus fused to form endosperm nucleus
D
Endosperm provides nutrition to embryo
Answer :
Male gamete and secondary nucleus fused to form endosperm nucleus
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