A "Ribosome-Like Domain" refers to a specific region within certain RNA molecules that resembles the structure and function of a ribosome. Ribosomes are cellular machines responsible for synthesizing proteins by translating messenger RNA (mRNA) into amino acid sequences. These domains can be found in various organisms and play crucial roles in the regulation of gene expression and protein synthesis. In some cases, ribosome-like domains are involved in the processing of RNA or the assembly of protein complexes. They can also be part of larger RNA structures, contributing to the overall functionality of the ribosome or other cellular processes. Understanding these domains helps researchers explore the complexities of molecular biology and the evolution of cellular machinery.