Regulation of Gene Expression - Unit 2

Small RNA's play a role in gene expression by inhibiting expression of genes.

Dicer cuts double stranded RNA into smaller RNA's called microRNA (miRNA) and small interfering RNA (siRNA's).

miRNA's bind to mRNA and prevent translation.

<p>siRNA's break apart mRNA before it's translated.</p> Signup and view all the answers

<p>siRNA's play a role in heterochromatin formation by blocking large regions of the chromosome.</p> Signup and view all the answers

<p>Small RNAs can promote the formation of heterochromatin in certain regions, blocking transcription.</p> Signup and view all the answers

<p>RNA interference involves RNA forming double stranded loops from newly formed mRNA, with loops inhibiting gene expression.</p> Signup and view all the answers

<p>Small RNAs regulate gene expression post-transcriptionally by binding to mRNA and preventing translation.</p> Signup and view all the answers

<p>Post-transcriptional control mechanisms, like miRNA and siRNA, fine-tune gene expression beyond transcription.</p> Signup and view all the answers

<p>miRNA's bind to mRNA and prevent translation, while siRNA's break apart mRNA before translation.</p> Signup and view all the answers