What are the two major molecules that make up ribosomal subunits? Recalling information from chapter 2, identify the buildingblocks for each of these molecule types.

Biochemistry
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ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
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What are the two major molecules that make up ribosomal subunits? Recalling information from chapter 2, identify the building
blocks for each of these molecule types.

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Introduction

Ribosomes are macromolecules found in abundant quantities in the cells of living cells. An actively dividing eukaryotic cell contains around 10 million ribosomes. Ribosomes are the sites of protein synthesis. In prokaryotic cells, the ribosomes are found floating freely in the cytoplasm, while in eukaryotes they are attached to the endoplasmic reticulum. 

The DNA is transcribed to form the mRNA, which is a sequence of nucleotides having information on the amino acid sequence that would make the intended protein. Ribosomes bind to the mRNA, and corresponding tRNA molecules for each codon enter the ribosomes, bind to mRNA, and start synthesizing amino acid chains. The synthesized protein then assumes the final 3D conformation to become functional. 

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