OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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____ is thought to block the “accidental” transcription of “turned off” genes.
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smRNA
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methylation of DNA
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Dicer
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all of these are correct
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Explanation:
Detailed explanation-1: -DNA methylation regulates gene expression by recruiting proteins involved in gene repression or by inhibiting the binding of transcription factor(s) to DNA.
Detailed explanation-2: -In the second class of models, methylation inhibits transcriptional activity indirectly, for example, by inducing an alteration in chromatin structure or by attracting proteins that bind to methylated DNA in a sequence-independent manner.
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