Final answer:
Eukaryotic genes contain exons and introns. During transcription, a pre-mRNA is produced which undergoes splicing to remove introns and connect exons. The resulting mature mRNA is then modified and can be translated into protein.
Step-by-step explanation:
Eukaryotic genes are composed of exons, which correspond to protein-coding sequences, and introns, which are non-coding intervening sequences. During transcription, a primary mRNA transcript (pre-mRNA) is produced from split genes. This pre-mRNA undergoes splicing, where introns are removed and exons are joined together to form a continuous mRNA. The mRNA is then modified with a 5' cap and poly-A tail. This mature mRNA can be translated into protein through the process of translation.