Hybridization of RNA to its template DNA strand during transcription induces formation of R-loops-RNA:DNA hybrids with unpaired non-template DNA strands. Although unresolved R-loops can be detrimental, some R-loops contribute to regulation of chromatin structure. Consequently, R-loops help regulate gene expression and play important roles in numerous cellular processes.
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Thomas G. Fazzio (2016) studied this question.
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