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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"
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
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