THE MOLECULAR BASIS OF INHERITANCE
THE GENETICS OF VIRUSES AND BACTERIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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paramecium
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bacteria
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virus
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prokaryote
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Detailed explanation-1: -Viroids: the smallest and simplest agents of infectious disease.
Detailed explanation-2: -We find a wide variety of viruses, while the smallest virus is the one causing foot and mouth disease, also called as FMDV. The disease caused by the airborne virus is very highly communicable transmitting up to many kilometers but virus is as small as 0.008 to 0.012 microns.
Detailed explanation-3: -Smallest virus belongs to the family of Picornaviridae. It is about 20-30nm in size. They have limited genetic information on them. Poliovirus belongs to this family.
Detailed explanation-4: -Viruses are even smaller than bacteria. They aren’t even a full cell. They are simply genetic material (DNA or RNA) packaged inside of a protein coating. They need to use another cell’s structures to reproduce.