Full formScience
RRNAstands forRibosomal Ribonucleic Acid
Full Form of RRNA
What is RRNA?
Ribosomal Ribonucleic Acid (rRNA) is a type of non-coding RNA that forms the core structural and functional component of ribosomes—the cellular machinery responsible for protein synthesis. In all living cells, including those in plants, animals, and microorganisms, rRNA constitutes about 80% of the total RNA mass. It is transcribed from ribosomal DNA (rDNA) and, together with ribosomal proteins, assembles into two ribosomal subunits (large and small). The rRNA molecule provides the catalytic site for peptide bond formation during translation, a process that decodes messenger RNA (mRNA) into polypeptide chains. In India, rRNA is a fundamental topic in high school biology curricula, especially under the CBSE, ICSE, and various state boards, and is extensively covered in competitive examinations such as NEET, AIIMS, and JEE for biotechnology aspirants. Understanding rRNA's role in ribosome structure and function is crucial for grasping core concepts of cell biology and central dogma of molecular biology. Research on rRNA continues to aid in developing antibiotics that target bacterial ribosomes, highlighting its medical significance.
RRNA का फुल फॉर्म
राइबोसोमी राइबोन्यूक्लिक अम्ल
Example
In the NEET biology syllabus, students learn that the large subunit of the ribosome contains rRNA which acts as a ribozyme to catalyse peptide bond formation.
RRNA — frequently asked questions
What is the full form of rRNA?
The full form of rRNA is Ribosomal Ribonucleic Acid.
What is the function of rRNA in a cell?
rRNA provides structural support to ribosomes and catalyses peptide bond formation during protein synthesis.
How is rRNA different from mRNA?
rRNA is a non-coding RNA that forms part of the ribosome, while mRNA carries the genetic code from DNA to the ribosome to direct protein synthesis.