Final answer:
Small noncoding RNAs regulate gene expression in bacteria by repressing translation.
Step-by-step explanation:
Small noncoding RNAs regulate gene expression in bacteria by repressing translation.
These small RNAs, called microRNAs (miRNAs), bind to specific messenger RNAs (mRNAs) and prevent them from being translated into proteins. By inhibiting translation, miRNAs effectively control gene expression in bacteria.