OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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These chemical tags inactivate or silence a gene.
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acetyl groups
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methyl groups
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histones
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genes
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Explanation:
Detailed explanation-1: -As previously mentioned, histone methylation can activate or repress gene expression with the effect of histone methylation on gene expression being determined by the site and the number of methyl groups on individual histones.
Detailed explanation-2: -DNA methylation is associated with the silencing of gene expression. The predominant mechanism involves the methylation of DNA and the subsequent recruitment of binding proteins that preferentially recognize methylated DNA.
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