Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 16, Problem 14TYK
Summary Introduction
To review:
Developing a hypothesis to explain that the eukaryotic transcription is generally controlled by the binding of regulatory protein to the DNA sequences rather than the RNA polymerase modification.
Introduction:
Transcription is the process of formation of RNA (ribonucleic acid) from DNA (deoxyribonucleic acid) by the enzyme RNA polymerases. Protein is formed from RNA by the process of translation. Living cell switches on or off the transcription, depending upon the requirement of the cell and this process is called transcriptional regulation. The cellular machinery of eukaryotes and prokaryotes is different and thus, they have different type of transcriptional regulations in their cells.
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Compare the roles of polyribosomes in prokaryotes vs eukaryotes in terms of coupling transcription and translations. And amplification of translation proteins.
Discuss how the expression of a protein can be regulated post transcription in eukaryotic cells through, using the following key terms:
Degradation of mRNA (two ways)
Blocking translation
Degradation of the protein
Consider this list (below) of steps involved in transcription. These steps are out of order.
TRANSCRIPTION:
1. mRNA travels through a nuclear pore and enters the cytoplasm
2. the mRNA polymerase attaches at the start of a specific gene
3. RNA polymerase reads the gene surface4. a transcription factor bonds to a promoter site5. DNA molecule is unwound
6. a complimentary mRNA is produced
What is the correct order of this transcription?
Chapter 16 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 16.1 - Suppose the lacl gene is mutated so that the Lac...Ch. 16.1 - Answer the equivalent question for the trp operon:...Ch. 16.2 - What is the role of histones in gene expression?...Ch. 16.2 - Prob. 2SBCh. 16.3 - Prob. 1SBCh. 16.3 - Prob. 2SBCh. 16.4 - Prob. 1SBCh. 16.4 - Prob. 2SBCh. 16.5 - Prob. 1SBCh. 16.5 - Prob. 2SB
Ch. 16.5 - Prob. 3SBCh. 16.5 - Prob. 4SBCh. 16 - Prob. 1TYKCh. 16 - For the E. coli lac operon, when lactose is...Ch. 16 - Prob. 3TYKCh. 16 - Prob. 4TYKCh. 16 - Prob. 5TYKCh. 16 - Prob. 6TYKCh. 16 - Prob. 7TYKCh. 16 - Prob. 8TYKCh. 16 - Prob. 9TYKCh. 16 - Prob. 10TYKCh. 16 - Discuss Concepts In a mutant strain of E. coli,...Ch. 16 - Prob. 12TYKCh. 16 - Prob. 13TYKCh. 16 - Prob. 14TYKCh. 16 - Design an experiment using rats as the model...Ch. 16 - Prob. 1ITDCh. 16 - Prob. 2ITDCh. 16 - Prob. 3ITDCh. 16 - Prob. 4ITD
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- Choose any/all that apply to mRNA processing in eukaryotes. The "starter/initiator" methionine codon is added to the 5' end of each mRNA molecule during post-transcriptional processing. The entirety of every mRNA transcript is always translated to protein. The 5' m'G cap interacts with the 3' poly (A) tail (via initiation factors and other proteins) to circularize an mRNA as part of the initiation of protein translation. mRNA processing occurs while genes are actively being transcribed.arrow_forwardGive only typing answer with explanation and conclusionarrow_forwardCompare the control of gene regulation in eukaryotes and bacteria at the level of initiation of transcription. How do the regulatory mechanisms work? What are the similarities and differences in these two types of organisms in terms of the specific components of the regulatory mechanisms?arrow_forward
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