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प्रश्न
How did the process of RNA interference help to control the nematode from infecting the roots of tobacco plants?
उत्तर
RNA Interference (RNAi) is a gene-silencing process that blocks the expression of genes in the parasite when it enters the host's body.
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RNAi is a method adopted to prevent infestation of roots of tobacco plants by a nematode Meloidegyne incognitia.
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In RNAi, a complementary RNA binds to mRNA to form a ds RNA that cannot translate and hence, its expression is blocked (Silencing).
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In this process, nematode-specific genes (DNA) are introduced in the host plant.
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This introduced DNA forms both sense and anti-sense RNA.
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These two strands, being complementary to each other, bend and form ds RNA, leading to RNA interference.
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mRNA of nematode is thus silenced and the parasite cannot survive in the transgenic host.
Thus, through the above method, tobacco plants can be protected from nematode attack
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संबंधित प्रश्न
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Key for lepidopteran insect pest species
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Species I |
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Species II |
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Species III |
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