Question: The large subunit and small subunit that use two types of RNA are major components that make up what?

SINEs or Short Interspersed Nuclear Elements are sequences of non-coding DNA present at high frequencies in various eukaryotic genomes.  They are a class of retrotransposons, DNA elements that amplify themselves throughout eukaryotic genomes, often through RNA intermediates.  Short-interspersed nuclear elements are characterized by their size and method of retrotransposition.  The literature differs on the length of the SINEs but there is a general consensus that they often range in length from about 100 to 700 base pairs (more or less, arbitrary cut-offs).  SINEs, like tRNAs and many small-nuclear RNAs possess an internal promoter and thus are transcribed differently than most protein-coding genes.  In other words, short-interspersed nuclear elements have their key promoter elements within the transcribed region itself.  Though transcribed by RNA polymerase III, SINEs and other genes possessing internal promoters, recruit different transcriptional machinery and factors than genes possessing upstream promoters.  Short-interspersed nuclear elements are transcribed by RNA polymerase III which is known to transcribe ribosomal RNA and tRNA, two types of RNA vital to ribosomal assembly and mRNA translation. <SEP> A ribosomal protein (r-protein or rProtein) is any of the proteins that, in conjunction with rRNA, make up the ribosomal subunits involved in the cellular process of translation.  A large part of the knowledge about these organic molecules has come from the study of "E. coli" ribosomes.  All ribosomal proteins have been isolated and many specific antibodies have been produced.  These, together with electronic microscopy and the use of certain reactives, have allowed for the determination of the topography of the proteins in the ribosome.  "E. coli", other bacteria and Archaea have a 30S small subunit and a 50S large subunit, whereas humans and yeasts have a 40S small subunit and a 60S large subunit.  Equivalent subunits are frequently numbered differently between bacteria, Archaea, yeasts and humans.  More recently, a near-complete (near)atomic picture of the ribosomal proteins is emerging from the latest high-resolution cryo-EM data (including PDB ID: 5AFI). <SEP> Ribosomal ribonucleic acid (rRNA) is the RNA component of the ribosome, and is essential for protein synthesis in all living organisms.  It constitutes the predominant material within the ribosome, which is approximately 60% rRNA and 40% protein by weight, or 3/5 of ribosome mass.  Ribosomes contain two major rRNAs and 50 or more proteins.  The ribosomal RNAs form two subunits, the large subunit (LSU) and small subunit (SSU).  The LSU rRNA acts as a ribozyme, catalyzing peptide bond formation.  rRNA sequences are widely used for working out evolutionary relationships among organisms, since they are of ancient origin and are found in all known forms of life. <SEP> The ribosome ( ) is a complex molecular machine, found within all living cells, that serves as the site of biological protein synthesis (translation).  Ribosomes link amino acids together in the order specified by messenger RNA (mRNA) molecules.  Each subunit is composed of one or more ribosomal RNA (rRNA) molecules and a variety of ribosomal proteins (r-protein or rProtein).  Ribosomes consist of two major components: the small ribosomal subunit, which reads the RNA, and the large subunit, which joins amino acids to form a polypeptide chain.  The ribosomes and associated molecules are also known as the "translational apparatus".