Multiple Choice
What is the term for the nucleotide sequences that are removed during mRNA processing?
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15. Gene Expression
Eukaryotic RNA Processing and Splicing
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What does a spliceosome remove from pre-mRNA during the process of splicing?
A
5' caps
B
Poly-A tails
C
Introns
D
Exons
Verified step by step guidance1
Understand the structure of pre-mRNA: Pre-mRNA is the initial transcript that is synthesized from DNA during transcription. It contains both coding regions (exons) and non-coding regions (introns).
Learn about the role of the spliceosome: The spliceosome is a complex of proteins and RNA molecules that facilitates the removal of introns from pre-mRNA. It ensures that only the exons are joined together to form mature mRNA.
Identify the components involved in splicing: The spliceosome recognizes specific sequences at the intron-exon boundaries, known as splice sites, and performs the cutting and joining process.
Differentiate between introns and exons: Introns are non-coding sequences that are removed during splicing, while exons are coding sequences that remain in the mature mRNA and are translated into proteins.
Recognize the outcome of splicing: After the spliceosome removes the introns, the exons are ligated together, resulting in a continuous sequence that forms the mature mRNA, ready for translation.
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