Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 14.4, Problem 1R
Summary Introduction
To review:
The reason and the process of pre-mRNA (precursor messenger ribonucleic acid) modification at the 5’-end and 3’-end of the transcript.
Introduction:
Transcription is the process of passing down the genetic information from deoxyribonucleic acid (DNA) molecule to RNA molecule. The process of transcription can be broken into three stages.
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How are introns removed during eukaryotic pre-mRNA processing?
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How is RNA processing efficiently coupled with the transcription of a
pre-mRNA?
Chapter 14 Solutions
Life: The Science of Biology
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- Is an entire chromosome made into an mRNA during transcription?arrow_forwardWhat are the steps involved in the processing of eukaryotic pre-mRNA? Why is this process important?arrow_forwardWhat are the three modifications made to pre-mRNA molecules before they become mature mRNAs that are ready to be used in protein synthesis? What is the function of each modification?arrow_forward
- How is the mRNA strand altered during mRNA processing (the intermediate step between transcription and translation)? How are these modifications helpful?arrow_forwardWhat is the evidence that some mRNAs are directed to accumulate in specific subcellular locations?arrow_forwardWhat is RNA editing, how can it increase the number of proteins that can beformed from a single pre-mRNA transcript?arrow_forward
- How would a null mutation in the guanylyl transferase gene affect overall mRNA stability in eukaryotic cells?arrow_forwardWhy do Introns in a pre-operational transcript differ in size and number?arrow_forwardHow many different polypeptides can be producedthrough alternative splicing of the same pre-mRNA?arrow_forward
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