1.
In seeds, characterised by hypogeal germination, cotyledons generally do not becomes green because
A.
They lack chloroplast
B.
They developed very early
C.
Contains inhibitor
D.
They remains below the soil
Answer :
They remains below the soil
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2.
Movement of pollen tube is
A.
Tactic
B.
Tropic
C.
Nastic
D.
Autonomous
Answer :
Tropic
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3.
At which temperature, germination of seed can not possible in most of the plants
A.
10° - 15°C
B.
5° - 10°C
C.
0° - 5°C
D.
20° - 25°C
Answer :
0° - 5°C
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4.
Syngamy means
A.
fusion of gametes
B.
fusion of cytoplasms
C.
fusion of two similar spores
D.
fusion of two dissimilar spores
Answer :
fusion of gametes
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5.
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by:
A.
Bee
B.
Wind
C.
Bat
D.
Water
Answer :
Wind
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6.
Mark the correct sequence
A.
Anthesis → Meiosis → Pollination → Syngamy
B.
Pollination → Meiosis → anthesis → Syngamy
C.
Anthesis → Pollination → Meiosis → Syngamy
D.
Meiosis → Anthesis → Pollination → Syngamy
Answer :
Anthesis → Meiosis → Pollination → Syngamy
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7.
What is the eyes of Potato
A.
Auxillary bud
B.
Accessary bud
C.
Adventitious bud
D.
Apical bud
Answer :
Auxillary bud
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8.
In Angiosperms embryosac is developed from
A.
Megaspore mother cell
B.
Secondary nucleus
C.
Endothecium
D.
Microspore mother cell
Answer :
Megaspore mother cell
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9.
The chemical which can break bud dormancy by its spray
A.
IAA
B.
2, 4 - D
C.
Zeatin
D.
Thiourea
Answer :
Thiourea
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10.
Male gamete in Angiosperm is produced by
A.
Generative cell
B.
Microspore cell
C.
Vegetative cell
D.
Tube cell
Answer :
Generative cell
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