Eukaryotic Gene Expression Problem Set
Problem 8: Protein coding sequences
Help to answer the question
The regions of DNA in a eukaryotic gene that encode a polypeptide product are called:
The coding regions of many eukaryotic genes are interrupted by
non-coding sequences known as introns. Introns are stretches of DNA whose
transcripts are absent from mature mRNA product. Exons are stretches of DNA
whose transcripts are present in mature mRNA and encode the product of the
eukaryotic gene. The relationship between the interrupted exons at the DNA
sequence level and the spliced exons in the mRNA is shown in the diagram.
The Biology Project
University of Arizona
Monday, October 27, 1997
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