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Texas A&M Biologists Unlock Non-Coding Half of Human Genome with Novel DNA Sequencing Technique
http://www.science.tamu.edu/news/story.php?story_ID=1282#.VDbBQ_mSyyA
"this study stated that differences in the heterochromatin exist ; the junk DNA is not stagnant as researchers originally had believed "
Simple Quantitative PCR Approach to Reveal Naturally Occurring and Mutation-Induced Repetitive Sequence Variation on the Drosophila Y Chromosome
Link :http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0109906