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Biology 15 Online
OpenStudy (anonymous):

The codons that signal the end of a polypeptide chain are called 1. promoters. 2. introns. 3. exons. 4. terminators.

OpenStudy (anonymous):

Terminators, check your closed question too, i think i answered them all.

OpenStudy (anonymous):

Terminators is correct, just took the quiz.

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