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As a virus replicates, its genes undergo random “copying errors” (i.e. genetic mutations). Over time, these genetic copying errors can, among other changes to the virus, lead to alterations in the virus' surface proteins or antigens.
Common questions
For informational purposes only. Consult your local medical authority for health advice.
Jul 12, 2021 · Mutation. When a virus replicates, and the end copy has differences (in DNA or RNA), those differences are mutations. Variant. When you ... mRNA vaccines · Can COVID-19 or Vaccines ... · Why are Two Doses of the ...
Aug 23, 2021 · While the idea of a virus mutating might sound scary, it's actually quite normal. Viruses mutate constantly. This is especially true of viruses ...
Apr 1, 2021 · Organisms in general, be it humans, plants, insects, bacteria, or viruses, undergo genetic mutations which can be beneficial or detrimental.
Virus mutations create genetic diversity, which is subject to the opposing actions of selection and random genetic drift, both of which are directly ...
Mutant viruses are continuously arising in viral populations. Even prolonged passage in the same environment does not mean that a population equilibrium has ...
Mutations involve changes to the sequence of an organism's genetic code. As you have learned, viruses typically mutate more rapidly than human cells do.
Jul 19, 2021 · But that also means that because the same "dangerous" mutations to the spike protein occurred in other, less deadly variants, the spike mutation ...
As a consequence, RNA viruses replicate as complex and dynamic mutant swarms, called viral quasispecies. Mutation rates at defined genomic sites are ...
Jul 22, 2020 · A mutation is simply a change in the virus' genome: the set of genetic instructions that contain all the information that the virus needs to ...