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In what way(s) can mRNAs be processed?Group of answer choicesBy removing the introns (the noncoding regions) of the mRNAsBy splicing the exons (the coding regions) of the mRNAs in different waysAll of the aboveBy adding caps and tails to the ends of the mRNAs

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In what way(s) can mRNAs be processed?Group of answer choicesBy removing the introns (the noncoding regions) of the mRNAsBy splicing the exons (the coding regions) of the mRNAs in different waysAll of the aboveBy adding caps and tails to the ends of the mRNAs

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Solution 1

mRNAs can be processed in several ways:

  1. By removing the introns (the noncoding regions) of the mRNAs: This process is known as splicing. Introns are non-coding sequences within a gene that are transcribed into mRNA but are removed before the mRNA leaves the nucleus.

  2. By splicing the exons (the coding regions) of the mRNAs in different ways: This is also part of the splicing process. Exons are the coding regions of a gene that remain in the mature mRNA after splicing. Different exons can be joined together in different combinations to produce different mRNAs from the same gene, a process known as alternative splicing.

  3. By adding caps and tails to the ends of the mRNAs: The cap is added to the 5' end of the mRNA and is important for stability of the mRNA and for initiation of protein synthesis. The tail is added to the 3' end of the mRNA and is a long string of adenine nucleotides (the poly-A tail) that helps to stabilize the mRNA.

So, the correct answer is "All of the above".

This problem has been solved

Solution 2

mRNAs can be processed in several ways:

  1. By removing the introns (the noncoding regions) of the mRNAs: Introns are non-coding regions of an mRNA molecule that are removed during the process of RNA splicing.

  2. By splicing the exons (the coding regions) of the mRNAs in different ways: Exons are the coding regions of an mRNA molecule. Different exons can be spliced, or joined together, in different ways to produce different proteins. This process is known as alternative splicing.

  3. By adding caps and tails to the ends of the mRNAs: A cap is added to the 5' end of the mRNA molecule, and a tail is added to the 3' end. These modifications help to protect the mRNA molecule from degradation, aid in the export of the mRNA from the nucleus, and help in the binding of the mRNA to the ribosome.

So, the answer is "All of the above".

This problem has been solved

Similar Questions

Which is true regarding mRNA transcription and processing?Group of answer choicesA 7-methylguansoine cap is added to the 3’ end of an mRNA strand.The sequences in the mRNA strand that direct the activity of the spliceosome are located in the intron and the exon.The 5’ AAUAAA 3’ sequence that directs the addition of the polyA tail is added to the mRNA strand by polyadenylation factors.During splicing, a linkage is formed between one end of the intron, and a base in the middle of the intron, forming a looped RNA.

What is the main event during mRNA splicing? Addition of new exons to the mature mRNA molecule Addition of new introns to the mature mRNA molecule Removal of all exons from the pre-mRNA molecule Removal of exons and add introns from the pre-mRNA molecule Removal of introns and ligation of the exon of the pre-mRNA molecule

Which of the following does not occur during RNA processing?View Available Hint(s)for Part ESegments of RNA that do code for the protein are reconnected.Segments of the RNA strand that do not actually code for the protein are removed.Adenine nucleotides are added to the end of the RNA strand, forming a tail.mRNA attaches to the small subunit of a ribosome.A modified guanine nucleotide is added to the beginning of the RNA strand as a cap.

Identify the process the pre-mRNA undergoes to create a functional mRNA.Multiple choice question.PhosphorylationExon removalSplicing

To create a functional RNA, the pre-mRNA undergoes a process known as splicing. During the splicing process, the are removed and the remaining are connected to each other.

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