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Definition of Junk DNA
1. Noun. Stretches of DNA that do not code for genes. "Most of the genome consists of junk DNA"
Definition of Junk DNA
1. Noun. (genetics) Any portion of the DNA sequence of a chromosome or a genome for which no function has been identified. ¹
¹ Source: wiktionary.com
Medical Definition of Junk DNA
1. That portion of DNA which is not transcribed and expressed, comprising about 90% of the 3 billion base pairs of the human genome; its function is not known. (05 Mar 2000)
Lexicographical Neighbors of Junk DNA
Literary usage of Junk DNA
Below you will find example usage of this term as found in modern and/or classical literature:
1. Crossing Over: The Basics of Evolution : Workbook for Teachers by Edith Dempster (2006)
"Less than 2% of your genome actually codes for proteins: the rest is called 'junk'
DNA. Because each one of us is unique, we each have slight differences in ..."
2. Agricultural Biotechnology: Novel Products & New Partnerships by Jane B. Segelken (1998)
"Lest you think I am being extreme, let me remind you that not very long ago the
term "junk DNA" was used to describe what could not be explained: because it ..."
3. Reaping the Benefits of Genomic and Proteomic Research: Intellectual by Stephen A. Merrill, Anne-Marie Mazza (2006)
"... argued that for the human genome—when much of the sequence was thought to be
without function (so- called junk DNA)—a much more efficient strategy would ..."
4. The Genomic Revolution by National Academies Press (COR), National Academies (U.S.), Conference, Keck Futures Initiative (2006)
""Who can declare what is junk DNA?" asked Hunt Willard, director of the Institute
for Genome Sciences and Policy at Duke University, adding, "I'd be afraid ..."
5. The Information Universe: Issues in Informing Science and Information by Informing Science Institute, Eli Cohen, Ed. (2006)
"... yet the remaining "junk" DNA is proving to have an enormous amount of functionally
important information, especially as the science of pharmacogenomics ..."
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