Identify the incorrect statement with respect to RNAi technology A. RN...
According to me the answer will be option.. A... because nematode Meloidegyne incognitia infect the roots of tobacco plants and cause great reduction in yeild..... lines direct from ncert.. pg. no. 209
Identify the incorrect statement with respect to RNAi technology A. RN...
Incorrect Statement Regarding RNAi Technology
Introduction
RNA interference (RNAi) is a process of post-transcriptional gene silencing that occurs in eukaryotic organisms. It involves the introduction of double-stranded RNA (dsRNA) into cells to trigger the degradation of complementary mRNA, leading to the suppression of gene expression.
Incorrect Statement
The incorrect statement with respect to RNAi technology is option A: RNAi takes place in all levels of eukaryotic organisms. RNAi is not present in all levels of eukaryotic organisms. It is mainly found in plants, animals, and fungi. The presence of RNAi in different organisms varies depending on the complexity of the organism.
RNAi as a Method of Cellular Defence
RNAi is a method of cellular defence in eukaryotic organisms. It is a mechanism that cells use to protect themselves against foreign nucleic acids, such as viruses and transposons. When cells encounter these foreign nucleic acids, they initiate an RNAi response to degrade the foreign RNA and prevent the expression of viral or transposon genes.
Source of Complementary RNA in RNAi
The source of complementary RNA in RNAi could be from viruses with RNA genomes and transposons that replicate via an RNA intermediate. In RNAi, dsRNA is introduced into cells, and it is processed into small interfering RNAs (siRNAs) that are complementary to specific mRNA sequences. The siRNAs then associate with the RNA-induced silencing complex (RISC) to degrade the target mRNA.
Silencing of Specific mRNA in RNAi
RNAi involves the silencing of specific mRNA due to the presence of complementary ssRNA. The siRNAs produced during RNAi are complementary to specific mRNA sequences, and they trigger the degradation of the target mRNA. This leads to the suppression of gene expression, and it is a powerful tool for studying gene function and developing new therapeutics.
Conclusion
In conclusion, RNAi is a powerful tool for studying gene function and developing new therapeutics. It is not present in all levels of eukaryotic organisms, and it is mainly found in plants, animals, and fungi. RNAi is a method of cellular defence in eukaryotic organisms, and it involves the introduction of dsRNA into cells to trigger the degradation of complementary mRNA, leading to the suppression of gene expression.
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