Question

For this type of decay, you don't need a decapping enzyme decay occurs from this end by ___' to ___' exoribonucleases --> such as those in the EXOSOME

Answer 1

The question deals with the degradation of RNA from the 3' to 5' end by exoribonucleases in the exosome, an essential mechanism for RNA stability and regulation in cells.

Step-by-step explanation:

The question refers to RNA stability and degradation, focusing on the process by which RNA is broken down by exoribonucleases without the need for a decapping enzyme. Decay occurs from the 3' to 5' end by exoribonucleases that are found within cellular structures such as the exosome. This is an essential mechanism for controlling the lifespan of RNA molecules within a cell. The exosome's RNA degradation activity is critical, as it helps regulate gene expression and maintain RNA quality by disposing of defective, damaged, or unnecessary RNA molecules. This process is also pivotal in protecting the cell from the accumulation of RNA that could interfere with normal cellular activities.