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प्रश्न
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. | ____________ |
उत्तर
| Asexual reproduction | Sexual reproduction | ||
| 1 | Reproduction that occurs with the help of somatic cells is called as asexual reproduction. | 1 | Reproduction that occurs with the help of germ cells is called sexual reproduction. |
| 2 | Both the parents are not required for asexual reproduction. It is uniparental reproduction. |
2 | Male and female parent are necessary for sexual reproduction. |
| 3 | This reproduction occurs with the help of mitosis only. | 3 | This reproduction occurs with the help of both meiosis and mitosis. |
| 4 | New individual formed by this method is genetically identical to parents. | 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 | Sexual reproduction occurs in various organisms like microbes, plants, animals and humans. It involves two main processes- gamete formation and fertilization. |
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संबंधित प्रश्न
Differentiate between 'stem tuber' and 'tuberous root'.
External fertilisation takes place in frogs.
A student in viewing under a microscope a permanent slide showing various stages of asexual reproduction by budding in yeast. Draw diagrams of what he observes (in proper sequence)
Name any two plants which are propagated by cuttings method.
Name one organism which reproduces by fission and another which reproduces by fragmentation.
State two advantages of grafting method of artificial propagation of plants.
What is the difference between the cuttings method and grafting method for the artificial propagation of plants?
What is tissue culture?
The two organisms which can regenerate fully from their cut body parts are :
(a) Paramecium and Hydra
(b) Hydra and Amoeba
(c) Planaria and Leishmania
(d) Hydra and Planaria
The cut part of a plant stem (without roots) which is used in grafting is called :
(a) stock
(b) stump
(c) scion
(d) graft
Why is it disadvantageous to grow plants vegetatively?
Write a short note on Bryophyllum.
Define the following:
Vegetative reproduction
Define the following:
Budding
Mention the common method of reproduction in Bacteria.
Mention the common method of reproduction in Spirogyra.
Mention the common method of reproduction in Ginger.
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
After viewing different slides, a student draws following diagrams. Select the one which depicts binary fission in Amoeba:
(A) a
(B) b
(C) c
(D) d
What is meant by asexual reproduction?
In which of the following figures is budding not shown?
(A) I
(B) II
(C) III
(D) IV
Write the correct option from the given multiple options.
Vegetative propagation is performed with the help of ..........................in sweet potato.
a) root
b) stem
c) leaf
d) flower.
Choose the correct alternative and rewrite the following:
Fermentation is a type of ____________________.
Rewrite the following statement by selecting the correct option.
When Hydra becomes matured, _________ takes place in it.
What do you understand by hybridisation?
What are the objectives of plant hybridisation?
What is micropropagation?
Why anther is called as tetrasporangiate structure?
What is protandry?
Name the three types of asexual reproduction in unicellular organisms.
Explain the importance of the reproduction process.
Draw a neat and labelled diagram.
Spore formation
During favourable conditions, Amoeba reproduces by ______
Offspring formed by the asexual method of reproduction have greater similarities among themselves because ______
(i) asexual reproduction involves only one parent
(ii) asexual reproduction does not involve gametes
(iii) asexual reproduction occurs before sexual reproduction
(iv) asexual reproduction occurs after sexual reproduction
Spirogyra 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
