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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Definitions:

Ladder Program

A graphical programming language used in industrial automation that represents circuits and logic control through symbols resembling a ladder.

File Word

Represents a unit of data storage that is typically a fixed number of bits or bytes long, used within a file to store information.

Sequencer Word File

In PLC systems, a sequencer word file is used to manage a series of outputs or execute a sequence of operations based on a predefined order stored within the PLC’s memory.

Output Word

A group of bits or a digital signal that is produced by a computer or PLC, representing a piece of output information.