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Unformatted text preview: upstream portion of exon 6 downstream portion of exon 7 not shown splice site 5 end of intron splice site 3 end of intron 5 AG U G YNYYRAY exon 6 upstream portion of pre-mRNA not shown exon 7 5 exon 6 3 exon 7 downstream portion of pre-mRNA not shown H 2 N O H N N N N CH 3 H 2 C O P O P O P O CH 2 O O O O O O OH OH OH O P O O O O CH 2 OH O H 2 N N N N N H 2 N N N N N O O 7 Prokaryotes DNA encoding proteins mRNA DNA encoding rRNAs/tRNAs transcript rRNAs & tRNAs DNA encoding tRNAs transcript tRNAs transcripts (pre-mRNAs) DNA encoding proteins mRNAs DNA encoding rRNAs transcript rRNAs DNA encoding tRNAs transcripts tRNAs Eukaryotes 8...
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