Multiple Choice
Splicing of different exons together from the same mRNA molecule can result in which of the following?
40
views
10. Transcription
RNA Modification and Processing
Struggling with Genetics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
A sequence of mRNA that is removed during processing is a(n):
A
poly-A tail
B
exon
C
intron
D
promoter
Verified step by step guidance1
Understand the process of mRNA processing: After transcription, the initial mRNA transcript (pre-mRNA) contains both coding and non-coding regions.
Identify the non-coding regions in the pre-mRNA: These are called introns, which are sequences that do not code for proteins and need to be removed.
Recognize the coding regions that remain in the mature mRNA: These are called exons, which are spliced together after introns are removed.
Recall that the poly-A tail is a string of adenine nucleotides added to the 3' end of the mRNA for stability, not removed during processing.
Know that the promoter is a DNA sequence where RNA polymerase binds to initiate transcription, not part of the mRNA sequence.
Related Videos
Related Practice
RNA Modification and Processing practice set
Problem sets built by lead tutorsExpert video explanations