Sia
Question
Biology
Posted 9 months ago
Which of the following is an example of epigenetic modification in gene expression? a) Base substitution mutation b) DNA methylation c) Frameshift mutation d) Translocation mutation
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Answer from Sia
Posted 9 months ago
B
Key Concept
DNA methylation
Explanation
DNA methylation is an epigenetic mechanism that involves the addition of a methyl group to the DNA molecule, typically at the 5' position of a cytosine ring. This modification can change the activity of a DNA segment without changing the sequence and often results in the repression of gene expression.
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