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Journal of Biological Sciences

Year: 2006 | Volume: 6 | Issue: 5 | Page No.: 921-925
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Authors

Mine Dosay-Akbulut

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Research Article

Group I Introns and Splicing Mechanism and Their Present Possibilities in Elasmobranchs

Mine Dosay-Akbulut
Intron or other known as intervening sequence, are important in the producing of mature mRNA, rRNA or tRNA via RNA splicing mechanism. Excision of introns and ligation of the exons with the RNA processing reaction called RNA splicing. Group I introns could be accepted as in the most ancient and wide spread group of introns and are more important because of their RNA secondary structure and their self splice ability in vitro. Different ITS2 sizes in PCR from each order of sharks, rays, skates and ratfish indicating some interesting possibilities about the evolution of this region in elasmobranchs and a possible Group I intron insertion into ITS2 region of elasmobranchs.
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