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Definition of "intron" [intron]

  • A segment of a gene situated between exons that is removed before translation of messenger RNA and does not function in coding for protein synthesis. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "intron" in a sentence
  • "We start from an organism that stores its genetic information in intron-less DNA and copies this to RNA as an intermediate to generate proteins."
  • "The functional SNP that the scientists found was located on what is known as intron 6, a reference to a specific location within the gene that is typically overlooked when searching for a functionally relevant mutation."
  • "But that could well be a real problem to solve – design me an intron depot so I can manage the traffic flow of nanoscopic drug delivery cars."
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