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प्रश्न
How is vegetative propagation economically important?
उत्तर
Vegetative propagation is economically important in the following ways:
- Vegetative propagation is helpful in the improvement of food crops, cash crops and ornamentals.
- Plants raised through vegetative propagation are totally identical to the parent plants (clones) and are genetically similar.
- Vegetative propagation is the only method to multiply those plants where seed formation does not occur.
- This is a cheaper, convenient and rapid method of plant multiplication.
- It is the only method of reproduction in plants like grapes, roses, Chrysanthemums, pineapples etc. which do not form viable seeds i.e. seeds do not germinate.
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संबंधित प्रश्न
Name one unicellular organism which reproduces by the same asexual process as Hydra.
What is yeast? Describe the process of reproduction in yeast with the help of labelled diagrams.
State two advantages of grafting method of artificial propagation of plants.
The organisms which can reproduce by fragmentation are :
(a) Corals and Sponges
(b) Corals and Spirogyra
(c) sea anemone and Spirogyra
(d) Sponges and Sea anemones
Fill in the following blank with suitable word :
Fusion of gametes gives rise to a single cell called ............
Choose the correct statement(s) on budding in yeast from the following :
I. A parent cell divides into two or more daughter cells and here the parent identity is lost.
II. In this the elongated nucleus divides to form two or more daughter nuclei.
III. A bud arises from a particular region on a parent body.
IV. After detaching from the parent body the bud grows into a new independent individual.
(A) I only
(B) III only
(C) II and III only
(D) III and IV only
What happens when on maturation sporangia burst?
After observing the prepared slides of binary fission in Amoeba and budding in yeast following observations were reported:
(a) Single cells of Amoeba and yeast were undergoing binary fission and budding respectively.
(B) Cytokinesis was observed in the yeast cell.
(C) Elongated nucleus was dividing to form two daughter nuclei in Amoeba.
(D) A chain of buds were observed due to reproduction in Amoeba.
The correct observation(s) is/are:
(A) a and c
(B) b only
(C) c and d
(D) d, a and c
Write a short note on regeneration.
Name the parts of the plants used to grow following flower: Lily
