Final answer:
Exons are the coding portions of genes while introns are the non-coding portions that are removed during RNA processing.
Explanation:
Exons are the coding portions of genes that contain the open reading frame (ORF) for protein synthesis. They can also include untranslated sequences like UTRs. Introns, on the other hand, are the non-coding portions of genes that are removed during RNA processing, while exons are connected to form mature mRNA.
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