Multiple Choice
RNA processing converts the RNA transcript into _____.
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15. Gene Expression
Eukaryotic RNA Processing and Splicing
Multiple Choice
In eukaryotes, which mechanism operates after transcription, but before translation of mRNA into protein?
A
DNA packaging into nucleosomes
B
Action of repressors and activators
C
Construction of a transcription initiation complex
D
RNA splicing
Verified step by step guidance1
Understand that in eukaryotic cells, gene expression involves multiple steps, including transcription, RNA processing, and translation.
Recognize that after transcription, the primary mRNA transcript (pre-mRNA) undergoes several modifications before it is translated into a protein.
Identify RNA splicing as a key post-transcriptional modification where introns (non-coding regions) are removed from the pre-mRNA, and exons (coding regions) are joined together to form a mature mRNA molecule.
Note that RNA splicing occurs in the nucleus and is essential for producing a functional mRNA that can be translated into a protein in the cytoplasm.
Differentiate RNA splicing from other processes such as DNA packaging, action of repressors and activators, and transcription initiation, which occur at different stages of gene expression.
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