Multiple Choice
In the context of gene expression, which of the following data would suggest that a specific DNA sequence functions as a control element?
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16. Regulation of Expression
Introduction to Regulation of Gene Expression
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Which of the following statements correctly describes gene regulation through RNA interference?
A
RNA interference enhances the transcription of specific genes by stabilizing mRNA.
B
RNA interference directly modifies the DNA sequence to regulate gene expression.
C
RNA interference is a process that increases the rate of DNA replication.
D
RNA interference involves the degradation of mRNA molecules, preventing translation.
Verified step by step guidance1
Understand that RNA interference (RNAi) is a biological process where RNA molecules inhibit gene expression or translation by neutralizing targeted mRNA molecules.
Recognize that RNAi does not enhance transcription or stabilize mRNA; instead, it leads to the degradation of mRNA, preventing it from being translated into proteins.
Note that RNAi does not directly modify the DNA sequence. It operates at the post-transcriptional level, affecting mRNA after it has been transcribed from DNA.
Acknowledge that RNAi is not involved in increasing the rate of DNA replication. Its primary role is in regulating gene expression by targeting mRNA.
Conclude that the correct description of RNA interference is that it involves the degradation of mRNA molecules, thereby preventing their translation into proteins.
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