The Case for Junk DNA
نویسندگان
چکیده
منابع مشابه
The Case for Junk DNA
With the advent of deep sequencing technologies and the ability to analyze whole genome sequences and transcriptomes, there has been a growing interest in exploring putative functions of the very large fraction of the genome that is commonly referred to as ‘‘junk DNA.’’ Whereas this is an issue of considerable importance in genome biology, there is an unfortunate tendency for researchers and sc...
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The widespread occurrence of noncoding (nc) RNAs--unannotated eukaryotic transcripts with reduced protein coding potential--suggests that they are functionally important. Study of ncRNAs is increasing our understanding of the organization and regulation of genomes.
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Many efforts have been done in order to explain the role of junk DNA, but its function remain to be elucidated. In addition the GC-content variations among species still represent an enigma. Both these two mysteries can have a common explanation: we hypothesize that the role of junk DNA is to preserve the mutations probability that is intrinsically reduced in GC-poorest genomes.
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Eukaryote and also human DNA contains large portion of noncoding sequences. As for the coding DNA, the noncoding DNA may be unique or in more identical or similar copies. DNA sequences with high copy numbers are then called repetitive sequences. If the copies of a sequence motif lie adjacent to each other in a block, or an array, we are speaking about tandem repeats, the repetitive sequences di...
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انتخاب نامساعد یکی از مشکلات اساسی در صنعت بیمه است. که ابتدا در سال 1960، توسط روتشیلد واستیگلیتز مورد بحث ومطالعه قرار گرفت ازآن موقع تاکنون بسیاری از پژوهشگران مدل های مختلفی را برای تجزیه و تحلیل تقاضا برای صنعت بیمه عمر که تماما ناشی از عدم قطعیت در این صنعت میباشد انجام داده اند .وهدف از آن پیدا کردن شرایطی است که تحت آن شرایط انتخاب یا کنار گذاشتن یک بیمه گزار به نفع و یا زیان شرکت بیمه ...
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ژورنال
عنوان ژورنال: PLoS Genetics
سال: 2014
ISSN: 1553-7404
DOI: 10.1371/journal.pgen.1004351