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WorksheetsmRNA Maturation Quiz
Total questions: 7
Worksheet time: 7mins
What is the process called in which introns are removed and exons are joined together in a pre-mRNA molecule?
Translation
Transcription
Splicing
Replication
Which of the following molecules is NOT involved in the splicing process of pre-mRNA? (whilst you might not know some of these, you should know what is NOT involved)
snRNPs
mRNA
Spliceosome
DNA polymerase
In the context of mRNA maturation, what are introns?
The segments of a pre-mRNA that are spliced out and degraded
The segments of a pre-mRNA that are retained and expressed
Proteins that aid in the splicing process
Enzymes that catalyze the addition of a 5' cap
What is the purpose of RNA editing?
To remove exons from the mRNA
To alter the nucleotide sequence of mRNA after transcription
To add a poly-A tail to the mRNA
To splice introns from the pre-mRNA
Which of the following is NOT a step in mRNA maturation? (Note except for the one that is not involved, all the others are).
Addition of a 5' cap
Addition of a poly-A tail
DNA replication
Splicing of introns
What role does the poly-A tail play in mRNA maturation? (NIC but interesting and you should be able to deduce the answer)
It marks the mRNA for degradation.
It assists in the export of mRNA from the nucleus.
It signals the start of transcription.
It adds nucleotides to the 5' end of the mRNA.
Which of the following is true about the removal of introns during splicing? (NIC but you should be able to deduce the answer).
It occurs after the mRNA has been exported to the cytoplasm.
It is a random process that occurs differently in every cell.
It requires ATP as an energy source.
It is mediated by ribosomes.
