Below Is a List of Steps of Eukaryotic Pre-MRNA Processing

question 45

Multiple Choice

Below is a list of steps of eukaryotic pre-mRNA processing. Please select the choice that lists the steps in the CORRECT sequential order. 1. Recognition and binding the 3' AAUAAA sequence by specific protein factors
2) Cleavage at the poly(A) site
3) Addition of the 5' cap
4) Export to the cytoplasm
5) Addition of the poly(A) tail

• A) 3, 1, 2, 5, 4
• B) 2, 3, 4, 5, 1
• C) 4, 2, 3, 1, 5
• D) 1, 3, 5, 4, 1
• E) 5, 4, 1, 3, 2

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