The type of RNA that is least stable in cells is ________.
A)tRNA
B)rRNA
C)mRNA
D)small RNA

Question

Quizplus · Accepted Answer

mRNA is the least stable type of RNA because it is constantly being synthesized and degraded in cells, with an average half-life of only a few hours. In contrast, tRNA and rRNA are more stable because they have important structural roles in the cell and are not constantly being synthesized and degraded. Small RNA molecules are also generally more stable than mRNA because they are specialized molecules that have specific functions, such as gene regulation.

The Type of RNA That Is Least Stable in Cells