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(B) The process of $RNA$ interference $(RNAi)$ is used to protect plants from nematodes like $Meloidogyne$ $incognita$. In this technique,specific gen

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Host plant

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(B) The process of $RNA$ interference $(RNAi)$ is used to protect plants from nematodes like $Meloidogyne$ $incognita$. In this technique,specific genes from the nematode are introduced into the host plant (e.g.,tobacco) using $Agrobacterium$ vectors. These genes produce both sense and antisense $RNA$ in the host cells,which form double-stranded $RNA$ $(dsRNA)$. This $dsRNA$ initiates $RNAi$ and silences the specific mRNA of the nematode,thereby preventing the parasite from surviving in the transgenic host plant.

In which organism is a specific gene introduced that produces $dsRNA$ and induces $RNA$ interference in nematodes?

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