This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'A segment of a eukaryotic gene that is not represented in the mature messenger RNA is known as \nSelect and explain. \nA. Intron, B. Exon, C. Plasmid, D. TATA box', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The primary transcript contains introns & exons. Splicing removes introns (segment of the gene that is not represented in mature m-RNA) from primary transcript.', 'role': 'assistant'}]