Men. 1  Black dress coat (tailcoat), matching trousers with a single stripe of satin or braid in the US; two stripes in Europe or the UK. 2  White piquÃ© wing-collared shirt with stiff front. 3  Braces, to ensure a good fit.  Shirt studs and cuff 1  links. White vest.  White bow 1  tie. White or gray gloves.  Black patent shoes and black dress socks.
Ribosomes are synthesized in the nucleolus by combining rRNA which is made there and ribosomal proteins that are synthesized in the cytoplasm and are imported into the nucleus. The ribosome is exported out of the nucleus and into the cytoplasm or are deposited on the rough ER. Ribosomes do not become fully active until they leave the nucleus.
Ribosomal RNA (rRNA) is the catalytic component of the ribosomes. Eukaryotic ribosomes contain four different rRNA molecules: 18S, 5.8S, 28S and 5S rRNA. Three of the rRNA molecules are synthesized in the nucleolus, and one is synthesized elsewhere. In the cytoplasm, ribosomal RNA and protein combine to form a nucleoprotein called a ribosome. The ribosome binds mRNA and carries out protein synthesis. Several ribosomes may be attached to a single mRNA at any time.