Final answer:
The 5' UTR of a mRNA plays a role in controlling mRNA stability by interacting with RNA-binding proteins (RBPs). These RBPs can either increase or decrease the stability of the mRNA, influencing the amount of protein that can be translated from it.
Step-by-step explanation:
The statement "The role of the 5' UTR of a mRNA is to control mRNA stability" is true. The 5' UTR, or the 5' untranslated region, is a region in the mRNA that precedes the protein-coding region. It plays a crucial role in regulating the stability of mRNA molecules. RNA-binding proteins (RBPs) can bind to the 5' UTR and influence the stability of the mRNA.
By binding to the 5' UTR, RBPs can either increase or decrease the stability of the mRNA, which in turn affects the amount of protein that can be translated from the mRNA. Factors such as the presence of RNA-binding proteins at the 5' UTR can influence the decay rate and therefore the stability of the mRNA.
Therefore, the 5' UTR of a mRNA is indeed involved in controlling mRNA stability.