One function of snoRNAs is to process pre-rRNA molecules in the mitochondrion.

SnoRNAs

Small nucleolar RNAs, a class of small RNA molecules that primarily guide chemical modifications of other RNAs, particularly ribosomal RNAs.

Pre-rRNA Molecules

These are precursor ribosomal RNA molecules that are transcribed from DNA and subsequently processed to form mature rRNA, which is essential for ribosome assembly and protein synthesis.

Mitochondrion

An organelle found in the cells of most eukaryotes, responsible for producing energy in the form of ATP through the process of oxidative phosphorylation.