Which of the following is a correct pair?

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(D) $1$. $TMV$ $(Tobacco Mosaic Virus)$ is a plant virus,not a bacterial virus (bacteriophage).$2$. Capsid is the protein coat of a virus,made of caps

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Virus - Main structural component is nucleoprotein

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(D) $1$. $TMV$ $(Tobacco Mosaic Virus)$ is a plant virus,not a bacterial virus (bacteriophage).$2$. Capsid is the protein coat of a virus,made of capsomeres (proteins),not polynucleotides.$3$. Viroids are infectious agents consisting only of a short strand of circular $RNA$,lacking a protein coat. They cause diseases like potato spindle tuber disease,not mosaic disease in tomato.$4$. Viruses are obligate parasites consisting of genetic material ($DNA$ or $RNA$) enclosed in a protein coat called a capsid. Thus,their main structural component is nucleoprotein.

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