MicroRNAs (miRNAs) regulate gene expression by
- A
Binding to promoter DNA to recruit RNA polymerase II and activate transcription of target genes
- Bcheck_circle
Pairing with target mRNAs to trigger their degradation or translational repression (RNA interference)
- C
Catalyzing the removal of introns from pre-mRNA transcripts during nuclear processing steps
- D
Pairing with template DNA strands to prime synthesis of new DNA during chromosome replication
Explanation
miRNAs bind target mRNAs in the RISC complex, fine-tuning gene expression post-transcriptionally.