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junk DNA

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junk DNA

Another name for intron, a region of DNA that contains no genetic information.
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To his geneticist detractors who remind us that the human genome probably contains as few as 25,000 genes, Pinker identifies a wealth of information contained in so-called junk DNA, the non-coding portions of the genome, "whose size, spacing, and composition could have large effects on how genes are expressed.
What We Believe But Cannot Prove: Today's Leading Thinkers on Science ... by Krause, Kenneth W. / The Humanist
Most SNPs occur in places in the genome that aren't used for making proteins--the so-called junk DNA.
Code of many colors: can researchers see race in the genome? by Brownlee, Christen / Science News
The remainder is so-called junk DNA that may someday be shown to have biologic merit, but that for now is largely seen as filler that remains in the genome for unknown reasons.
Charting the Map of Life by Schmidt, Charles W. / Environmental Health Perspectives
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