Intervening-sequence



noun, Genetics.
1.
.
[in-tron] /ˈɪn trɒn/
noun, Genetics.
1.
a noncoding segment in a length of DNA that interrupts a gene-coding sequence or nontranslated sequence, the corresponding segment being removed from the RNA copy before transcription.
/ˈɪntrɒn/
noun
1.
(biochem) a stretch of DNA that interrupts a gene and does not contribute to the specification of a protein Compare exon2

1978, from intragenic + -on.

intron in·tron (ĭn’trŏn)
n.
A segment of a gene situated between exons that does not function in coding for protein synthesis.
intron
(ĭn’trŏn)
A segment of a gene situated between exons that does not function in coding for protein synthesis. After transcription of a gene to messenger RNA, the transcriptions of introns are removed, and the exons are spliced together by enzymes before translation and assembly of amino acids into proteins. Compare exon.

A stretch of DNA in a gene that does not code for proteins. In eukaryotes, introns in a given gene separate stretches of DNA that contain instructions for constructing proteins. (Compare exon.)

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