Question

What is the function of the exon?

Answer 1

Exon:

1. Exons are coding sequences that code for a protein's amino acid sequence.
2. After post-transcriptional alteration, the exons are translated into mature mRNA.
3. These are highly conserved sequences, meaning they don't change much over time.

The function of exons:

1. Exons are the parts of a gene that code for a protein.
2. Exons are mRNA coding regions that code for amino acids.
3. Various exons code for different protein domains.
4. A single exon or numerous exons spliced together can encode the domains.
5. When exons on sister chromosomes are switched during recombination, exon shuffling occurs.
6. This enables the creation of new genes.
7. Exons also allow for alternative splicing, which allows several proteins to be translated from the same gene.
8. Genes in eukaryotes are made up of coding exons sandwiched between non-coding introns.
9. These introns are subsequently eliminated, resulting in a fully functional messenger RNA (mRNA) capable of being translated into a protein.
10. Introns are deleted from mature mRNA, and exons are joined together.
11. After introns have been eliminated by RNA splicing, an exon is any component of a gene that will constitute a part of the final mature RNA generated by that gene.