JOINING EXON Meaning and
Definition
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Joining Exon (noun):
A joining exon, also referred to as a fused exon, is a segment of DNA or RNA that connects or links two adjacent exons during the process of alternative splicing. Alternative splicing is a mechanism in molecular biology through which different combinations of exons within a gene can be selected and joined together, resulting in the production of various mRNA (messenger RNA) isoforms or transcripts.
In the process of alternative splicing, introns (non-coding regions) are removed, and exons (coding regions) are joined together to form the mature mRNA. In some cases, an intermediary sequence known as a joining exon can be introduced between two neighboring exons, thereby altering the arrangement and structure of the final mRNA product. This joining exon can be thought of as a connector that enables the fusion of exons and contributes to the diversification of protein products.
The presence of a joining exon adds an additional level of complexity to the regulation and expression of genes in eukaryotic organisms. Joining exons can be selectively included or skipped; this splicing event affects the coding sequence and potentially the functional properties of the resulting protein. The precise selection of exons and inclusion of joining exons involve a variety of regulatory factors and mechanisms that collectively contribute to the diversity of gene products generated in higher organisms, playing a crucial role in cellular functions, differentiation, and evolution.
Common Misspellings for JOINING EXON
- hoining exon
- noining exon
- moining exon
- koining exon
- ioining exon
- uoining exon
- jiining exon
- jkining exon
- jlining exon
- jpining exon
- j0ining exon
- j9ining exon
- jouning exon
- jojning exon
- jokning exon
- jooning exon
- jo9ning exon
- jo8ning exon
- joibing exon
- joiming exon
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