junk DNA

noun

Definition of junk DNA 

: a region of DNA that usually consists of a repeating DNA sequence, does not code for protein, and has no known function

First Known Use of junk DNA

1963, in the meaning defined above

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The first known use of junk DNA was in 1963

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junk DNA

noun
\ˈjəŋk- \

Medical Definition of junk DNA 

: a region of DNA (as spacer DNA) that usually consists of a repeating DNA sequence, does not code for protein, and has no known function

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