What type of RNA is contained in ribosomes?

Ribosomes contain ribosomal RNA (rRNA), which is a key component of their structure and function. rRNA helps to form the ribosome's core and catalyzes the assembly of amino acids into protein chains during translation. Additionally, ribosomes also associate with messenger RNA (mRNA) and transfer RNA (tRNA) during protein synthesis, but the rRNA is the primary RNA type found within ribosomes themselves.