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Definitions from WordNet

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Junk DNA

Noun:

1. segments of DNA that do not code for any specific protein and were historically thought to be non-functional remnants of evolution.

Example sentence:

The discovery that junk DNA may play a role in gene regulation has revolutionized our understanding of the genome.

Related products:

Books about junk DNA

Adjective:

1. referring to DNA sequences that do not have a coding function.

Example sentence:

The scientists focused on analyzing the region with junk DNA to determine its structure.

Related products:

Research kits for studying junk DNA