I was think about buying a 1999-2005 Silver Pf69 Ultra Cameo State Quarters in either Pcgs or Ngc. I was wondering what grading service is the best out of...
There are two different locations where ribosomes can be found in a  cell. These two locations are suspended in the cytosol and attached  to the endoplasmic reticulum.
1 Ribosomes are composed of both RNA and proteins. 2  About 37 - 62% of RNA are made up of RNA and the rest is proteins. 3  Ribosome is made up of two subunits. 4  The subunits of ribosomes are named according to their ability of sedimentation on a special gel which the Sevdberg Unit. Ribosomes in a cell are located in two regions of the cytoplasm. 2  They are found scattered in the cytoplasm and some are attached to the endoplasmic reticulum. 3  When the ribosomes are bound to the ER there are known as the rough endoplasmic reticulum.