alleryWhich process can change gene expression without altering the DNA sequence?
ADNA methylation
Bpoint mutation
Cgene deletion
Dcrossing over
Answer & Solution
Correct answer: A. DNA methylation
1. Epigenetic mechanisms change how genes are expressed.
2. DNA methylation and histone modification are examples.
3. Mutation, deletion and crossing over change the DNA sequence or its arrangement.
_Source: Wikipedia, "Epigenetics" (rev 1379364169), section "Lead section"_
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