âMaya Angelouâ. Lithograph Special Edition, An original print by artist Lynda Lanker. A portrait of Dr. Angelou created with her blessing, this hand-printed lithograph, printed by Master Printer Mark Mahaffey of Mahaffey Fine Art, comes matted (using archival quality materials) and is ready for framing. The edition is limited to just 100 prints, each priced at $275 plus $35 shipping. - Purchase Here â.
As mentioned above, ribosomes are the molecular machines responsible for protein synthesis. A ribosome is made out of RNA and proteins, and each ribosome consists of two separate RNA-protein complexes, known as the small and large subunits.
1 The subunits of the ribosome are synthesized by the nucleolus. 2  The subunits of ribosomes join together when the ribosomes attaches to the messenger RNA during the process of protein synthesis. 3  Ribosomes along with a transfer RNA molecule (tRNA), helps to translate the protein-coding genes in mRNA to proteins. 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.