Exons are the DNA fragments that get to be transcripted and translated into proteins. Option b)<u> </u><u>Exons</u> end up being expressed in the protein.
<h3>What are introns and exons?</h3>
Even though more than 70% of the DNA is related to genes, just a part of the genes is translated to proteins. Most genes have DNA segments that are not transcripted or translated intercalated with segments that are translated.
- Introns are non-encoding sequences that produce interruptions in a eukaryotic gene.
- Exons are the encoding sequences. Exons are the nucleotidic sequences that do codify proteins.
Most of the eukaryotic, multicellular genes contain introns in their sequences, intercalated with exons.
Introns are transcripted to mRNA molecules and get excised before translation by a specific mechanism. This occurs before the mRNA leaves the nucleus. The introns are excised and the exons must splice to form a unique molecule. This process is known as splicing.
Exonic sequences are the fragments that are transcripted and translated into proteins.
The correct option is b). Exons end up being expressed in the protein
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