In molecular genetics, what term describes the non-coding sequences of a eukaryotic pre-mRNA that are excised during splicing?
Answer and explanation
Correct answer: C. Introns
- Step 1: Spliceosomes cut out non-coding introns and join protein-coding exons together to form mature mRNA. Answer: Introns. Why not the others: Exons are retained in mature mRNA to be translated into protein.
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