Which statement does NOT describe the CAP structure of mRNA?
A) The CAP structure contains two phosphoanhydride bonds.
B) The CAP is added to an existing 5'triphosphate nucleotide.
C) The CAP structure may include multiple methylations.
D) The CAP structure is added after addition of the poly(A) structure.
E) The CAP interacts with both the ribosome and the carboxyterminal domain of RNA Pol II.

Question

Quizplus · Accepted Answer

The CAP structure is added to the 5' end of mRNA before the addition of the poly(A) tail, not after. This capping occurs early in the transcription process and is essential for mRNA processing and stability.

Which Statement Does NOT Describe the CAP Structure of MRNA