Exons vs' Intron Stryer, Chapter 4'6

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Exons vs. IntronStryer, Chapter 4.6
Mammalian genes contain regions that not
expressed as proteins, referred to as introns.
When DNA is transcribed into mRNA the introns are
removed, such that the mRNA only contains the
sequence of the protein (e.g. only the spliced
exons remain)
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Introns vs. exons
Introns intervening sequences Exons expressed
sequences