What describes the general purpose of RNA splicing?

The general purpose of RNA splicing is to create mature mRNA from the primary transcript. During this process, introns, which are non-coding sequences, are removed from the pre-mRNA transcript, and the remaining exons, which are coding sequences, are joined together. This modification is essential for the proper expression of genes, as it ensures that only the necessary coding information is retained for translation into proteins.

Mature mRNA is then transported from the nucleus to the cytoplasm, where it serves as a template for protein synthesis. The splicing process also plays a critical role in the regulation of gene expression and the diversity of proteins, as alternative splicing can generate different mRNA variants from a single gene, potentially leading to different protein isoforms.