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Ribosomal RNA


Ribosomal RNA - Molecular Basis of Inheritance | Class 12 Biology


From DNA to protein - 3D


Ribosomal RNA is actively synthesized in :-


Basic prebiotic chemistry


What Is the RNA World Hypothesis?

Ribosomal ribonucleic acid (rRNA) is the RNA component of the ribosome, and is essential for protein synthesis in all living organisms. It constitutes the predominant material within the ribosome, which is approximately 60% rRNA and 40% protein by weight, or 3/5 of ribosome mass. Ribosomes contain two major rRNAs and 50 or more proteins. The ribosomal RNAs form two subunits, the large subunit (LSU) and small subunit (SSU). The LSU rRNA acts as a ribozyme, catalyzing peptide bond formation. rRNA sequences are widely used for working out evolutionary relationships among organisms, since they are of ancient origin and are found in all known forms of life.
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  • Types 

  • Structure 

  • Function 

  • Subunits and associated ribosomal DNA 

  • Biosynthesis 

  • Degradation 

  • Sequence Conservation and Stability 

  • Significance 

  • Genes coding for ribosomal proteins