List two advantages of practising vegetative propagation in plants. Select two plants raised by this method from the list given below: banana, gram, pea, rose, tomato, wheat
List two advantages of practising vegetative propagation in plants. Select two plants raised by this method from the list given below: banana, gram, pea, rose, tomato, wheat
Advantages of Vegetative Propagation:
- Earlier Flowering and Fruiting: Plants raised by vegetative propagation can bear flowers and fruits earlier than those produced from seeds.
- Propagation of Seedless Plants: It makes possible the propagation of plants (such as banana, orange, rose, and jasmine) that have lost the capacity to produce seeds.
- Genetic Similarity: All plants produced are genetically similar enough to the parent plant to have all its characteristics.
(Any two of the above advantages can be written)
Selected Plants:
From the given list, the two plants raised by vegetative propagation are:
- Banana
- Rose
Marking Scheme
- 1Any two advantages of vegetative propagation (0.5 marks each) (1 mark)
- 2Correct selection of two plants: banana and rose (0.5 marks each) (1 mark)
Hint
Think about which plants in the list do not produce viable seeds or are commonly grown from stem cuttings, and recall the benefits of bypassing the seed stage.
Quick Oral Answer
Vegetative propagation is a method of asexual reproduction in plants where vegetative parts like roots, stems, or leaves give rise to new plants. Two advantages are that it allows faster growth/fruiting and helps propagate seedless plants like banana and rose.
Analysis & Explanation
According to the NCERT textbook, vegetative propagation is an asexual mode of reproduction where parts like the root, stem, and leaves develop into new plants under appropriate conditions.
- Advantages:
- It allows plants to bear flowers and fruits much earlier than seed-grown plants.
- It is highly beneficial for propagating seedless varieties like banana, orange, rose, and jasmine.
- It ensures genetic uniformity, meaning the offspring will have identical characteristics to the parent plant.
- Selection: Gram, pea, tomato, and wheat are typically grown from seeds (sexual reproduction), whereas banana and rose are commonly propagated vegetatively (e.g., through stem cuttings or suckers).
Common Mistakes
- 1Selecting plants like wheat, gram, or pea which are sexually reproduced via seeds.
- 2Confusing vegetative propagation with sexual reproduction advantages.
Interesting Facts
Many commercial banana varieties are completely seedless and sterile, meaning they can only be propagated vegetatively!
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2012?
This question carries 2 marks in the CBSE Class 10 Science 2012 examination.
Which chapter does this question come from in Science?
This question is from the chapter "How do Organisms Reproduce?" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Vegetative Propagation" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2012 paper?
This is a Short Answer question from Section A in the CBSE Class 10 Science 2012 paper.