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प्रश्न
Define 'stock' and 'scion'.
उत्तर
The lower portion of the graft, i.e. the stem with roots is termed as a stock. The upper portion of the graft, i.e. the stem without roots is termed as a scion.
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संबंधित प्रश्न
When a moist slice of bread was kept aside for a few days then some organism grew on it to form a white cottony mass which later turned black. When this slice of bread was observed through a magnifying glass, then fine thread-like projections and thin stems having bulb-like structures at the top were seen.
(a) What is the common name and scientific name of the organism which grew on the moist slice of bread?
(b) How did this organism grow on the moist slice of bread automatically?
(c) What are the fine, thread-like projections on the surface of slice of bread known as?
(d) What name is given to the knob-like structures and what do they contain?
(e) What is the name of this method of reproduction?
(f) Name one unicellular organism which reproduces by this method.
(g) Name tow non-flowering plants which reproduce by this method.
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Correct diagrams are
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(B) II, III, IV
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