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  2. Ribosomal RNA (rRNA) | Definition & Function | Britannica

    ribosomal RNA (rRNA), molecule in cells that forms part of the protein -synthesizing organelle known as a ribosome and that is exported to the cytoplasm to help translate the information in messenger RNA (mRNA) into protein. The three major types of RNA that occur in cells are rRNA, mRNA, and transfer RNA (tRNA).

  3. Ribosomal RNA (rRNA): Definition & Function - Biology Dictionary

    Oct 4, 2019 · Ribosomal ribonucleic acid (rRNA) is the RNA component of ribosomes, the molecular machines that catalyze protein synthesis. Ribosomal RNA constitute over sixty percent of the ribosome by weight and are crucial for all its functions – from binding to mRNA and recruiting tRNA to catalyzing the formation of a peptide bond between two amino acids.

  4. Ribosomal RNA - Wikipedia

    Ribosomal ribonucleic acid (rRNA) is a type of non-coding RNA which is the primary component of ribosomes, essential to all cells. rRNA is a ribozyme which carries out protein synthesis in ribosomes.

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  5. The 3 Types of RNA and Their Functions - ThoughtCo

    Sep 12, 2019 · There are several types of ribonucleic acid, or RNA, but most RNA falls into one of three categories. mRNA transcribes the genetic code from DNA into a form that can be read and used to make proteins. mRNA carries genetic information …

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  6. rRNA - Structure, Definition, Types, Functions - Biology Notes …

    May 30, 2024 · Ribonucleic acid refers to the RNA contained in ribosomes, the molecules responsible for catalysing protein synthesis (rRNA).

  7. 10.3: Structure and Function of RNA - Biology LibreTexts

    Apr 21, 2024 · Ribosomal RNA (rRNA) is a type of stable RNA that is a major constituent of ribosomes. It ensures the proper alignment of the mRNA and the ribosomes during protein synthesis and catalyzes the formation of the peptide bonds between two aligned amino acids during protein synthesis.

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  8. Nucleic acid - Ribosomal RNA, rRNA, Translation | Britannica

    Apr 19, 2025 · Ribosomal RNA (rRNA) molecules are the structural components of the ribosome. The rRNAs form extensive secondary structures and play an active role in recognizing conserved portions of mRNAs and tRNAs. They also assist with the catalysis of protein synthesis.

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  9. RRNA - (General Biology I) - Vocab, Definition, Explanations

    Ribosomal RNA (rRNA) is a type of non-coding RNA that is a fundamental component of ribosomes, which are the cellular structures responsible for protein synthesis. rRNA molecules provide structural support and catalyze the chemical reactions involved in translating messenger RNA (mRNA) into proteins.

  10. Ribosomal RNA (rRNA) - Definition, Types and Functions - BYJU'S

    All cells require ribosomes, the main building block of non-coding RNA known as ribosomal ribonucleic acid (rRNA). To create the large and small ribosome subunits, ribosomal RNA is translated from ribosomal DNA (rDNA). Table of Contents. What is Ribosomal RNA; Types of rRNA; Functions of rRNA; Frequently Asked Questions (FAQs)

  11. Ribosomal RNA | Definition, Discovery, Structure & Function

    Aug 22, 2022 · Ribosomal RNA Definition. Ribosomal RNA (rRNAs) are RNA molecules that are essential components of ribosomes. Ribosomes are the structural and functional units of protein synthesis in all living cells. In eukaryotes, there are three types of r RNA: 28S, 5.8S, and 18S. It carries out the instructions on messenger RNA during protein synthesis.

  12. Ribosomal Rna - Biology Simple

    Jan 30, 2025 · Ribosomal RNA, or rRNA, forms the core of ribosomes. Ribosomes are the structures where proteins are made. Without rRNA, cells can’t produce proteins, which are vital for life. Understanding rRNA helps in grasping how cells function. This knowledge is crucial for studying genetics and medicine.

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  13. RRNA - (Anatomy and Physiology I) - Vocab, Definition ... - Fiveable

    Ribosomal RNA (rRNA) is a type of RNA molecule that is an essential component of ribosomes, the cellular structures responsible for protein synthesis in all living organisms. rRNA plays a crucial role in the process of protein synthesis, which is a key aspect of both organic compound functioning and cellular processes.

  14. Ribosomal RNA (rRNA) - (General Biology I) - Vocab, Definition ...

    Ribosomal RNA (rRNA) is a type of RNA that combines with proteins to form ribosomes. These ribosomes are the cellular structures where protein synthesis occurs.

  15. rRNA: What Is It? - Sciencing

    Sep 25, 2018 · Ribosomal RNA (rRNA) is one of the main components of ribosomes. Ribosomal RNA creates the peptide bonds between all of the amino acids in a polypeptide chain. All three forms of RNA are produced in the nucleus of a cell and are in the cytoplasm for protein synthesis.

  16. Ribosomal RNA - an overview | ScienceDirect Topics

    Ribosomal RNA (rRNA) is an important structural and functional component of the ribosome. DNA coding for rRNA (rDNA) occurs in multiple, tandemly repeated copies, usually localized in a part of the nuclear genome on one or several chromosomes.

  17. rRNA’s Role in Ribosome Function and Gene Expression

    Nov 27, 2024 · Ribosomal RNA (rRNA) is a key component of ribosomes, the cellular structures responsible for protein synthesis. It serves both structural and functional roles, actively participating in decoding genetic information and ensuring the …

  18. Ribosome RNA - an overview | ScienceDirect Topics

    Ribosomal RNA, also known as rRNA, is a fundamental component of the ribosome, a molecular machine responsible for translating genetic information from messenger RNA (mRNA) into specific protein sequences. It plays a crucial role in protein synthesis and is highly conserved across all organisms.

  19. Ribosomal RNA (rRNA) - (AP Biology) - Vocab, Definition

    rRNA is part of ribosomes, serving as structural components and also catalyzing peptide bond formation. It's essential for protein synthesis in all living organisms.

  20. 13.4: RNA Transcription - Biology LibreTexts

    5 days ago · Transcription in Bacteria. Bacteria use the same RNA polymerase to transcribe all of their genes. Like DNA polymerase, RNA polymerase adds nucleotides one by one to the 3’-OH group of the growing nucleotide chain.

  21. RRNA - (Organic Chemistry II) - Vocab, Definition ... - Fiveable

    rRNA, or ribosomal RNA, is a type of RNA that plays a crucial role in protein synthesis by serving as a structural and functional component of ribosomes. Ribosomes are the cellular machinery where proteins are assembled, and rRNA helps facilitate the interaction between mRNA and tRNA during translation, ensuring that the correct amino acids are ...

  22. Ribosomal RNA (rRNA) - (Microbiology) - Vocab, Definition

    Ribosomal RNA (rRNA) is a type of RNA that, along with proteins, makes up the ribosomes. Ribosomes are the cellular structures where protein synthesis occurs.

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