Multiple Choice
What is the primary role of mRNA in the process of transcription and gene expression?
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10. Transcription
Overview of Transcription
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Which of the following is a limitation of using a simplified model to represent the steps of transcription and translation?
A
It accurately depicts all post-translational modifications.
B
It often omits regulatory elements such as enhancers and silencers.
C
It provides detailed information about the genetic code for every organism.
D
It includes the complete structure of ribosomes and their subunits.
Verified step by step guidance1
Understand that simplified models of transcription and translation are designed to highlight the core processes without overwhelming detail.
Recognize that such models often focus on the basic flow: DNA to RNA (transcription) and RNA to protein (translation), omitting complex regulatory mechanisms.
Identify that regulatory elements like enhancers and silencers play crucial roles in gene expression but are frequently left out in simplified diagrams or explanations.
Note that simplified models usually do not include detailed structures such as the full ribosome architecture or all post-translational modifications.
Conclude that the main limitation of simplified models is their omission of regulatory elements, which are essential for understanding gene expression control.
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