Question

Arrange the statements describing the production and function of miRNAs in the order in which they occur.

Answer 1

MiRNAs are small RNA molecules that control gene expression at the post-transcriptional level. They are produced through a process that involves transcription, processing, and binding to mRNA along with a ribonucleoprotein complex called the RNA-induced silencing complex (RISC). The RISC-miRNA complex then degrades the target mRNA.

Step-by-step explanation:

MiRNAs are small RNA molecules that control gene expression at the post-transcriptional level. They are produced through a process that involves transcription, processing, and binding to mRNA along with a ribonucleoprotein complex called the RNA-induced silencing complex (RISC). The RISC-miRNA complex then degrades the target mRNA. The order of events in the production and function of miRNAs is as follows:

1. Transcription of longer pre-miRNAs in the nucleus
2. Chopping of pre-miRNAs into mature miRNAs by the protein dicer
3. Binding of miRNAs to mRNA along with the RISC complex
4. Degradation of the target mRNA by the RISC-miRNA complex