3C. Genetic Variation


Conjugation in bacteria                                                Coronavirus

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Genetic variation within a population will occur during the transmission of information at the level of DNA, RNA and in protein production.  So mutations at the molecular level produce errors which may be repaired or if not repaired, will result in changed proteins.  The proteins (phenotypes) produced are subject to natural selection.  Variations may occur in vertical transmission of genetic transmission of information (sexual reproduction) or horizontally as it occurs between bacteria, between bacteria and viruses and finally among viruses themselves.


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