rRNA (Ribosomal RNA)
rRNA are made into small subunits and transported out of the nucleolus through the nucleus to the cytoplasm. Once in the cytoplasm, rRNA subunits assemble into ribosome and are used for translation in protein synthesis.
tRNA (Transfer RNA )
Similar to the other RNAs, tRNA are located in the cytoplasm and are involved in protein synthesis. tRNA transfers amino acids to the ribosome that corresponds to the nucleotide codon of mRNA. The amino acids form polypeptide chains.
mRNA (Messenger RNA)
mRNA carries genetic information from the nucleus, that is transcribed from the DNA, to the cytoplasm of a cell for protein synthesis.
There are three main RNA in protein synthesis that are involved in coding, decoding, regulation, and expression of genes. RNA are often found in single-strands
Nucleolus is a nonmembranous organelle involved in the production of ribosomes which are synthesizes with ribosomal RNA (rRNA) with instructions in the DNA. Nucleolus disassemble during mitosis and reform in early G1 phase.
In more details: long rRNA molecules are transcribed from the DNA, then are processed into three RNAs, and packaged together with specific proteins to make the large and small subunits. Once the subunits are assembled, they are transported out of the nucleolus to the cytoplasm for translation in protein synthesis.
