RNA PROCESSING Meaning and
Definition
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RNA processing refers to a series of biochemical modifications and alterations that occur in the newly synthesized RNA molecules within the nucleus of eukaryotic cells, leading to the production of mature and functional RNA molecules. This process involves several steps, including capping, splicing, and polyadenylation.
Capping is the addition of a modified guanosine nucleotide at the 5' end of the RNA molecule. This cap structure protects the RNA from degradation and plays a crucial role in the initiation of translation, the process by which proteins are synthesized from the RNA.
Splicing is the removal of non-coding regions called introns from the RNA molecule. This process is carried out by a molecular complex called the spliceosome, which precisely cuts out the introns and splices the remaining exons together, generating a mature mRNA molecule.
Polyadenylation is the addition of a string of adenine nucleotides, known as the poly-A tail, at the 3' end of the RNA molecule. This poly-A tail protects the RNA from degradation and helps in the export of the RNA molecule from the nucleus to the cytoplasm.
RNA processing is crucial for the correct functioning of the RNA molecules in various cellular processes such as gene expression and protein synthesis. It ensures that the RNA molecules are properly modified, protected, and transported to their respective cellular destinations. Dysregulation or errors in RNA processing can have severe consequences and are associated with various diseases and disorders.
Common Misspellings for RNA PROCESSING
- ena processing
- dna processing
- fna processing
- tna processing
- 5na processing
- 4na processing
- rba processing
- rma processing
- rja processing
- rha processing
- rnz processing
- rns processing
- rnw processing
- rnq processing
- rna orocessing
- rna lrocessing
- rna 0rocessing
- rna peocessing
- rna pdocessing
- rna pfocessing
Etymology of RNA PROCESSING
The word "RNA processing" does not have a specific etymology as it is a technical term used in molecular biology. However, we can break down the origins of the individual words:
1. RNA: This stands for "Ribonucleic Acid", which is a molecule essential for various biological processes. The term "RNA" was coined by scientists in the mid-20th century.
2. Processing: The word "processing" comes from the Old French word "processer" which means "to proceed", "to set forth", or "to carry forward". It can also be traced back to the Latin word "processus" meaning "a going forward" or "advancement".
In the context of molecular biology, "RNA processing" refers to the various modifications and alterations that RNA molecules undergo after transcription from DNA.
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