An exon is a segment of a gene that contains the coding information for a protein. These segments are crucial because they are the parts of DNA that are expressed as proteins, in contrast to introns, which are non-coding regions that are spliced out during mRNA processing. The presence of exons allows for the precise and efficient synthesis of proteins, which are vital for the structure and function of cells.
congrats on reading the definition of Exon. now let's actually learn it.