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Q67 (IAS/2014) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Plant anatomy physiology Official Key

Which of the following statements is/are correct regarding vegetative propagation of plants? 1. Vegetative propagation produces clonal population. 2. Vegetative propagation helps in eliminating the virus. 3. Vegetative propagation can be practiced most of the year. Select the correct answer using the code given below.

Result
Your answer: —  Âˇ  Correct: C
Explanation

The correct answer is option C (Statements 1 and 3 only).

**Statement 1 is correct:** Vegetative propagation produces plants that are genetically similar enough to the parent plant to have all its characteristics[1], meaning they form a clonal population of genetically identical individuals.

**Statement 2 is incorrect:** Vegetative propagation does **not** eliminate viruses. Since vegetative propagation uses parts of the parent plant (roots, stems, or leaves), any systemic viruses present in the parent will be transmitted to the offspring. The documents mention that tissue culture allows many plants to be grown from one parent in disease-free conditions[2], but this refers to controlled laboratory conditions with special techniques, not standard vegetative propagation methods.

**Statement 3 is correct:** Vegetative propagation can be achieved by layering, grafting, or rooting semi-hardwood cuttings[3], and these methods can generally be practiced throughout most of the year, unlike seed propagation which is often season-dependent. This makes vegetative propagation a flexible agricultural technique.

Sources
  1. [1] Science , class X (NCERT 2025 ed.) > Chapter 7: How do Organisms Reproduce? > 7.2.5 Vegetative Propagation > p. 117
  2. [2] Science , class X (NCERT 2025 ed.) > Chapter 7: How do Organisms Reproduce? > Tissue culture > p. 118
  3. [3] https://www.science.gov/topicpages/m/micropropagation+seed+propagation
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Q. Which of the following statements is/are correct regarding vegetative propagation of plants? 1. Vegetative propagation produces clonal p…
At a glance
Origin: Books + Current Affairs Fairness: Moderate fairness Books / CA: 6.7/10 ¡ 3.3/10
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Statement 1
Does vegetative propagation of plants produce clonal populations (genetically identical offspring)?
Origin: Direct from books Fairness: Straightforward Book-answerable
From standard books
Science , class X (NCERT 2025 ed.) > Chapter 7: How do Organisms Reproduce? > 7.2.5 Vegetative Propagation > p. 117
Presence: 5/5
“There are many plants in which parts like the root, stem and leaves develop into new plants under appropriate conditions. Unlike in most animals, plants can indeed use such a mode for reproduction. This property of vegetative propagation is used in methods such as layering or grafting to grow many plants like sugarcane, roses, or grapes for agricultural purposes. Plants raised by vegetative propagation can bear flowers and fruits earlier than those produced from seeds. Such methods also make possible the propagation of plants such as banana, orange, rose and jasmine that have lost the capacity to produce seeds. Another advantage of vegetative propagation is that all plants produced are genetically similar enough to the parent plant to have all its characteristics.”
Why this source?
  • Explicitly states vegetative propagation produces plants 'genetically similar enough' to the parent and retains parental characteristics.
  • Gives practical examples (banana, orange, rose, jasmine) where vegetative methods preserve parent traits.
Science , class X (NCERT 2025 ed.) > Chapter 7: How do Organisms Reproduce? > What you have learnt > p. 126
Presence: 4/5
“They can also give out buds which mature into new individuals.• n Roots, stems and leaves of some plants develop into new plants through vegetative propagation.• n These are examples of asexual reproduction where new generations are created from a single individual.• n Sexual reproduction involves two individuals for the creation of a new individual.• n DNA copying mechanisms creates variations which are useful for ensuring the survival of the species. Modes of sexual reproduction allow for greater variation to be generated.• n Reproduction in flowering plants involves transfer of pollen grains from the anther to the stigma which is referred to as pollination.”
Why this source?
  • Identifies vegetative propagation as a form of asexual reproduction created from a single individual.
  • Asexual reproduction from one parent is the conceptual basis for offspring being genetically similar/clone-like.
Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 2: PLANT AND ANIMAL KINGDOMS > Dispersal of plants in Migration > p. 5
Presence: 3/5
“Te following factors determine and control the nature of seed dispersal of plants and therefore, dispersal and migration of plants: • (i) Properties of seeds• (ii) Agents of seeds transportation• (iii) Speed and distance of dispersal• (iv) Geographical barriers• (v) Tolerance factors• (vi) Continental Drift.• (vii) Anthropogenic factor (Man as a medium of dispersal of seeds) Plants which reproduce vegetatively by asexual means, such as rhizomes, corms and bulbs, will have an extremely limited capacity for migration as the ofspring will be immediately adjacent to the parents and so will hardly be dispersed at all from the previous generation. In contrast, plants which reproduce by spores or seeds, will have faster rates of migration as they will be dispersed further between generations.”
Why this source?
  • Describes vegetative/ asexual means (rhizomes, corms, bulbs) producing offspring immediately adjacent to the parent.
  • Supports the ecological implication of local, repeated propagation consistent with clonal spread.
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