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junkdna
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The answer JUNKDNA has 3 possible clue(s) in existing crosswords.
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The word JUNKDNA is NOT valid in any word game. (Sorry, you cannot play JUNKDNA in Scrabble, Words With Friends etc)
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Definitions of junkdna in various dictionaries:
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Possible Crossword Clues |
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Worthless inheritance? |
Genetic material with no known function |
Genetic material that doesn't code for protein |
Last Seen in these Crosswords & Puzzles |
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Oct 5 2012 New York Times |
Apr 28 2010 The A.V Club |
Dec 27 2009 New York Times |
Junkdna might refer to |
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In genomics and related disciplines, noncoding DNA sequences are components of an organism's DNA that do not encode protein sequences. Some noncoding DNA is transcribed into functional non-coding RNA molecules (e.g. transfer RNA, ribosomal RNA, and regulatory RNAs). Other functions of noncoding DNA include the transcriptional and translational regulation of protein-coding sequences, scaffold attachment regions, origins of DNA replication, centromeres and telomeres. * The amount of noncoding DNA varies greatly among species. Often, only a small percentage of the genome is responsible for coding proteins, but a rising percentage is being shown to have regulatory functions. When there is much Non-coding DNA, a large proportion appears to have no biological function, as predicted in the 1960s. Since that time, this non-functional portion has controversially been called "junk DNA".The international Encyclopedia of DNA Elements (ENCODE) project uncovered, by direct biochemical approaches, that at least 80% of human genomic DNA has biochemical activity. Though this was not necessarily unexpected due to previous decades of research discovering many functional noncoding regions, some scientists criticized the conclusion for conflating biochemical activity with biological function. * Estimates for the biologically functional fraction of our genome based on comparative genomics range between 8 and 15%. However, others have argued against relying solely on estimates from comparative genomics due to its limited scope. Non-coding DNA has been found to be involved in epigenetic activity and complex networks of genetic interactions, and is being explored in evolutionary developmental biology. |