Name the technique used to prevent the attack of nematode in root of tobacco plants.
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Distinguish between anatomy of dicot root and monocot root.
Anatomy of dicot root Anatomy of monocot root 1. Pith is narrow. Pith is large and well developed. 2. Diarch, triarch or tetrarch condition can be observed. (Xylem bundles vary from two to six...
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In which of the following characters, a monocot root differs from dicot root?
The correct answer is (B) Large pith
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Name any two plants in which root caps are replaced by root pockets.
In hydrophytes, root caps are replaced by root pocket e.g. Pistia, Eichhornia etc.
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When the root is swollen in the middle and tapers at both ends, it will be called as root.
The correct answer is (B) fusiform
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In which of the following plants, root cap is replaced by root pocket?
The correct answer is (A) Pistia
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Vidhya and Vijay were studying the effect of certain radiations on flower plants. Vidhya exposed her plants to UV rays and Vijay exposed his plants
Frequency of UV rays is greater than infrared rays, hence UV rays are much more energetic than infrared rays. Plants cannot tolerate the exposure of high energy rays. As a...
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Legume plants have root nodules. Rhizobium bacteria is present in the root nodules
(A) Symbiosis
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Tap root system consists of a single root, called …………………
Tap root system consists of a single root, called Taproot
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Suggest two features of plants that will prevent insect and pest infestation.
i. Increasing hair growth on aerial parts of plants. ii. Rendering the flowers nectar less. iii. Enabling plants to secrete insect killing chemicals (toxins).
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Name the technique used for separating DNA fragments in the laboratory.
Gel electrophoresis.
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