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Definitions for junk dna

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Random House Webster's College Dictionary

junk DNA(n.)

  1. segments of DNA that have no apparent genetic function.

    Category: Biology

Origin of junk DNA:

1990–95

Princeton's WordNet

  1. junk DNA(noun)

    stretches of DNA that do not code for genes

    "most of the genome consists of junk DNA"

Wiktionary

  1. junk DNA(Noun)

    Any portion of the DNA sequence of a chromosome or a genome for which no function has been identified.

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