What Does the -55 Boundary Rule Signify with Respect to NMD

question 29

Multiple Choice

What does the -55 boundary rule signify with respect to NMD?

• A)Only stop codons at least 55 nt downstream of the final intron trigger NMD.
• B)Only stop codons at least 55 nt upstream of the final intron trigger NMD.
• C)Only stop codons at least 55 nt downstream of the first intron trigger NMD.
• D)Only stop codons at least 55 nt upstream of the first intron trigger NMD.

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