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21
Which of the following is the principal pathway by which water is translocated in the angiosperms?
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Answer: Option C
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22
The maximum amount of water, which plants need to grow, is absorbed by the following?
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Answer: Option D
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23
Bordeux mixture, one of the very common chemotherapeutents, is a mixture of
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Answer: Option D
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24
Vernalisation can be reversed by
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Answer: Option A
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25
The germination of seeds within the fruit while still attached to the mother plant is known as
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Answer: Option B
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26
The absorption of light, with subsequent activation of the absorbing molecule, followed by aseries of chemical reactions leading to a general plant response, is termed as
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Answer: Option C
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27
The first use of seeds was made by
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Answer: Option A
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28
Which of the following is an example of chemical scarification as way of breaking dormancy resulting from the seed coat?
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Answer: Option C
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29
The mycelium of the fungus Colietotrichum falactum grows
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Answer: Option C
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30
Which of the following families has by far the largest number of species which produce seeds with hard seed coats impermeable to water?
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Answer: Option A
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