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Class 12 Biology
Reproduction In Organisms Chapter 1
Quiz 1
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Micropropagation is a technique
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For production of somaclonal plants
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For production of somatic hybrids
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For production of true to type plants
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For production of haploid plants
In grafting, the portion to be grafted on the main plant is called
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Stock
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Scion
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Stem
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Adventitious bud
An edible part of cauliflower is
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Inflorescence
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Bract
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Leaves
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Bud
There is no natural death in single-celled organisms like Amoeba and bacteria because
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They are microscopic.
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They cannot reproduce asexually.
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They reproduce by binary fission.
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The parental body is distributed among the offspring.
During favourable conditions, Amoeba reproduces by
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Binary fission
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Multiple fission
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Both of these
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None of the above
Hydra reproduces asexually through
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Sporulation
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Budding
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Fragmentation
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Binary fission
Vegetatively propagated plants are
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Genetically dissimilar
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Do not bear roots
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Genetically similar
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Do not form buds
Why asexual reproduction is sometimes disadvantageous?
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It produces genetically uniform populations. correct
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It allows an animal to produce many offspring quickly.
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It saves the time and energy of gamete production.
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It allows animals which do not move around to produce offspring without finding mates.
Vegetative propagation in mint occurs by
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Sucker
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Rhizome
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Offset
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Runner
A scion is grafted to a stock. The quality of fruits produced will be determined by the quality of
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Stock
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Scion correct
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External environmental factors
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Both stock and scion
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