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प्रश्न
Define.
Vegetative propagation
उत्तर
Vegetative reproduction is a type of asexual reproduction in plants, where new plants are produced from the vegetative parts like roots, stems, leaves, and buds.
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संबंधित प्रश्न
List any two modes of asexual reproduction in animals.Under which mode of reproduction is vegetative propagation placed and why?
Name the method by which Spirogyra reproduces under favourable conditions. Is this method sexual or asexual?
Draw in sequence (showing the four stages), the process of binary fission in Amoeba.
Name one organism which reproduces by spore formation
Name the asexual method of reproduction in yeast.
Name the asexual method of reproduction in Hydra
Name any two plants which are propagated by cuttings method.
Fill in the following blank with suitable word :
Vegetative reproduction of potato plants is done by using ............
Can you consider cell division as a type of reproduction in unicellular organisms? Give reason.
A simple multicellular animal having tentacles which lives in freshwater usually reproduces by the asexual process of :
(a) binary fission
(b) spore formation
(c) budding
(d) fragmentation
One of the following reproduces by forming spores. This in :
(a) Fern
(b) Planaria
(c) Spirogyra
(d) Potato
Vegetative propagation refers to the formation of new plants from the following existing organs of the old plants :
(a) stems, roots and flowers
(b) stems, roots and leaves
(c) stems, flowers and fruits
(d) stems, leaves and flowers
Binary fission describes the type of reproduction where the organism divides to form :
(a) many spores
(b) two daughters
(c) many buds
(d) two hyphae
Multiple fission occurs in one of the following. This is :
(a) bread mould
(b) kala-azar parasite
(c) flatworm
(d) malaria parasite
APlanaria worm is cut horizontally in the middle into two halves P and Q such that the part P contains the whole head of the worm. Another Planaria worm is cut vertically into two halves R and s in such a way that both the cut pieces R and S contain half head each. Which of the cut pieces of the twoPlanaria worms could regenerate to form the complete respective worms?
(a) only P
(b) only R and S
(c) P, R and S
(d) P, Q, R and S
A worm X found in freshwater and slow-moving streams has been accidently cut into three pieces. It was observed that in due course of time, each cut piece of the worm develops to become a complete worm by growing all the missing parts.
(a) Name the worm X which can exhibit this phenomenon of making complete worm from its cut body parts.
(b) Name another organism Y which possesses the same characteristic of growing fully from its cut body parts.
(c) What is the name of this process in which a complete organism is formed from its cut body part.
(d) State whether X and Y are unicellular and/or multicellular organisms.
(e) Can a dog be produced completely form its cut body part (say, a cut tail) just like organisms X and Y? Why?
Fill in the following blank with suitable word :
The process of fusion of gametes is called .............
State whether the following statement IS true (T) or false (F):
Asexual reproduction is more common than the sexual reproduction.
State whether the following statement is true (T) or false (F):
A potato tuber is really an underground stem.
Define the following:
Budding
Mention the common method of reproduction in Mango.
Name a multicellular organism which reproduces by fragmentation method.
Gemmule formation takes place in ________.
Choose the correct alternative and rewrite the following:
Ramesh observed a slide of Amoeba with elongated nuclei. It would represent _______________.
Draw a labelled diagram in proper sequence to show budding in hydra.
Define vegetative propagation. List its two methods.
Name four plants which can be propagated by stem-cutting.
How is micropropagation carried out?
What is protandry?
What determines whether the two organisms of a species will be exactly similar or not?
Name the three types of asexual reproduction in unicellular organisms.
Vegetative propagation by leaves takes place in ______.
Budding, in hydra, is a form of ______.
During favourable conditions, Amoeba reproduces by ______
Offspring formed by asexual method of reproduction have greater similarity among themselves because
- asexual reproduction involves only one parent
- asexual reproduction does not involve gametes
- asexual reproduction occurs before sexual reproduction
- asexual reproduction occurs after sexual reproduction
In the diagram of a bisexual flower given in Figure 12.5, draw the missing part and label the parts marked (a), (b) and (c). Also, label the missing part that you draw
Which of the following options shows two plants in which new plantlets arise from the same organ?
