BIOLOGICAL CLASSIFICATION
VIRUSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Vaccinations are easier to make for RNA based viruses
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RNA based viruses mutate more than DNA based viruses
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DNA based viruses mutate more than DNA based viruses
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None of the above
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Detailed explanation-1: -Rates of spontaneous mutation vary amply among viruses. RNA viruses mutate faster than DNA viruses, single-stranded viruses mutate faster than double-strand virus, and genome size appears to correlate negatively with mutation rate.
Detailed explanation-2: -The higher per-site mutation rates of RNA viruses can be explained in part by the RNA-dependent RNA polymerases (RdRp) that replicate their genomes. Unlike many DNA polymerases, RdRp do not have proofreading activity and are thus unable to correct mistakes during replication.
Detailed explanation-3: -RNA viruses have high mutation rates-up to a million times higher than their hosts-and these high rates are correlated with enhanced virulence and evolvability, traits considered beneficial for viruses.
Detailed explanation-4: -The DNA replication enzyme DNA polymerase has a special quality that is the proofreading which prevents the mutations as it eliminates them. whereas in the RNA viruses they don’t have this property as they have RNA polymerase and they dot have his tendency and thus the mutation is faster.