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प्रश्न
…………. is a mode of asexual reproduction.
(a) Cloning
(b) Budding
(c) Pollination
(d) Germination
उत्तर
(b) Budding.
Cloning is a process by which an entire organism is reproduced in a genetically identical manner from a single cell taken from the parent organism. Pollination and germination are associated with sexual reproduction in plants.
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संबंधित प्रश्न
Name the part of Bryophyllum where the buds are produced for vegetative propagation.
List any two modes of asexual reproduction in animals.Under which mode of reproduction is vegetative propagation placed and why?
Most of the plants reproduce by sexual method. Name two plants which can reproduce asexually.
Name the asexual method of reproduction in yeast.
Which artificial propagation method is used for the production of jasmine plants?
Fill in the following blanks with suitable words :
Plasmodium reproduces by the process of ............ fission whereas Paramecium reproduces by the process of ......... fission.
Fill in the following blank with suitable word :
Strawberry plants are propagated by the natural............... method.
Explain vegetative propagation with the help of two examples. List two advantages of vegetative propagation.
Describe the layering method for the artificial propagation of plants. Illustrate your answer with the help of a labelled diagram. Name any five plants which are propagated by the layering method.
Why does bread mould grow profusely on a moist slice of bread but not on a dry slice of bread?
What is tissue culture?
The ability of a cell to divide into several cells during reproduction in Plasmodium is called :
(a) budding
(b) fragmentation
(c) binary fission
(d) multiple fission
Stock and scion are involved in the artificial propagation method known as :
(a) tissue culture
(b) layering
(c) grafting
(d) cuttings
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?
Briefly explain why a gardener prefers to grow certain plants vegetatively?
Write a short note on Micro propagation.
Fill in the blank:
Budding is a kind of _________ reproduction.
State whether the following statement is true (T) or false (F):
Reproduction by spores is a method of asexual reproduction.
Define the following:
Grafting
Define the following:
Budding
Mention the common method of reproduction in Bacteria.
Mention the common method of reproduction in Ginger.
Name the method by which hydra reproduces. Is this method sexual or asexual?
A student after observing a slide showing different stages of binary fission in Amoeba draws the following diagrams. However these diagrams are not in proper sequence:
The correct sequence is:
(A) I, V, IV, III, II
(B) I, III, IV, V, II
(C) I, V, III, IV, II
(D) I, IV, V, III, II
The following figure illustrates binary fission in Amoeba in an incorrect sequence.
The correct sequence is
(A) III, II, IV, I
(B) III, IV, II, I
(C) II, III, IV, I
(D) IV, III, II, I
A yeast cell in which budding occurs was seen to have:
(1) one bud cell
(2) two bud cell
(3) three bud cell
(4) a chain of bud cells
Complete the following chart:
| Asexual reproduction | Sexual reproduction | ||
| 1. | Reproduction that occurs with the help of somatic cells is called as asexual reproduction. | 1. | ____________ |
| 2. | ____________ | 2. | Male and female parent are necessary for sexual reproduction. |
| 3. | This reproduction occurs with the help of mitosis only. | 3. | ____________ |
| 4 | ____________ | 4. | New individual formed by this method is genetically different from parents. |
| 5 | Asexual reproduction occurs in different individuals by various methods like binary fission, multiple fission, budding, fragmentation, regeneration, vegetative propagation, spore production, etc. | 5. | ____________ |
Fill in the blanks and rewrite the completed statements:
___________ acid inhibits growth leading to wilting of leaves.
Name the mode of reproduction process seen in yeast.
Choose the correct alternative and rewrite the following:
Ramesh observed a slide of Amoeba with elongated nuclei. It would represent _______________.
In hydra the type of reproduction is ___________.
Give the name of the plant that reproduces vegetatively by: Bulbils
The plants produced as a result of vegetative reproduction are
Describe the process of fertilization in angiosperms with the help of a diagram.
Identify the reason because of which cambium is essential for grafting in plants.
Many unicellular organisms reproduce by the process of ______
______ do not produce spores.
Mustard was growing in two fields- A and B. While Field A produced brown coloured seeds, field B produced yellow coloured seeds.
It was observed that in field A, the offsprings showed only the parental trait for consecutive generations, whereas in field B, majority of the offsprings showed a variation in the progeny.
What are the probable reasons for these?
Explain with the help of a labelled diagram, the process of reproduction in Hydra by budding. Name the cells used for reproduction in this process.
