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Mutation: Difference between revisions
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[[Image:Types_of_mutation.JPG|right]] | [[Image:Types_of_mutation.JPG|right]] | ||
A '''mutation''' is any spontaneous heritable change in [[DNA]] sequence | A '''mutation''' is any spontaneous heritable change in [[DNA]] sequence that contributes to [[genetic variability]]. It results from 2 possible mechanisms. | ||
# Cellular accidents during processes like replication, recombination, or transposition. | # Cellular accidents during processes like replication, recombination, or transposition. | ||
# Exposures to foreign mutagens, such as chemicals or ultra violet rays. | # Exposures to foreign mutagens, such as chemicals or ultra violet rays. | ||
