81.
Which anther and stigma mature at the same time is called as
A
Misogamy
B
Allogamy
C
Xenogamy
D
Homogamy
Answer :
Homogamy
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82.
Plants with ovaries having only one or a few ovules, are generally pollinated by
A
bees
B
butterflies
C
birds
D
wind
Answer :
wind
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83.
The endosperm in Angiosperms develops from
A
Micropylar polar nucleus
B
Chalazal polar nucleus
C
Secondary nucleus
D
Zygote
Answer :
Secondary nucleus
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84.
In which plant self sterility is found
A
Gossypium
B
Pitunia
C
Marigold
D
Primrose
Answer :
Pitunia
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85.
Which type of tetrad is found in Magnolia plant
A
Isobilateral
B
T - shaped
C
Halophia
D
Decussate
Answer :
Decussate
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86.
Which type of growth is found in pollen tube
A
Lateral growth
B
Apical growth
C
Middle growth
D
No growth
Answer :
Apical growth
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87.
Function of embryonal suspensor in Angiosperms is to
A
Serve as channel for H2O
B
Push embryo deeper into endosperm
C
Release growth hormones
D
Transfer nutrients from parent sporophyte to young embryo
Answer :
Push embryo deeper into endosperm
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88.
Pollen tube enters into embryosac of Angiosperm through the
A
Egg cell
B
Any one of the synergids
C
Any one of the antipodal cells
D
None of the above
Answer :
Any one of the synergids
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89.
The part of Gynoecium which receives the pollen is called
A
Stigma
B
Style
C
Ovule
D
Ovary
Answer :
Stigma
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90.
Protandry is the situation when
A
Anther matures later then the stigma of flower
B
Anther matures learlier then the stigma of flower
C
Anther and stigma mature at the same time
D
All of the above
Answer :
Anther matures learlier then the stigma of flower
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