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stoop (1)
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stop codon

stop co·don (plural stop co·dons)


noun 
Definition:
 
DNA sequence indicating gene end: a sequence of three chemical units base pairs linking complementary strands of DNA or RNA that indicates the end of a protein synthesis. The three stop codons are thymine-adenine-guanine, thymine-adenine-adenine, and thymine-guanine-adenine.

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