16. Regulation of Expression
Eukaryotic Post-Transcriptional Regulation
Multiple Choice
Multiple ChoiceWhat is the evolutionary significance of alternative RNA splicing?
A
It can silence genes, giving cells another way of controlling gene expression.
B
Because it is not specific to a cell type, alternative RNA splicing can make sweeping changes in gene expression, allowing an organism to adapt quickly to new situations.
C
It acts as a defense against viral RNA, helping organisms avoid infection, particularly by cancer-causing viruses.
D
The introns that are spliced out can become miRNAs and can recognize and degrade mRNA transcripts.
E
It expands the number of proteins that can be coded for by one gene, increasing an organism's ability to produce novel proteins.
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