What Is Splicing and why Is it Required?

Splicing refers to the post-transcriptional modification in the newly transcribed RNAs. It is required to make it fully functional. Splicing excises introns or non-coding portions of RNA and exons, which are the coding portions join together. Pre-mRNA needs to be spliced before it can take part in protein synthesis.

This process makes a gene more flexible and allows a new combination of exons during evolution. A new exon can also be inserted in the gene without disturbing its functionality.

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